[Scope of application] It is used to measure the tear resistance of various woven fabrics (Elmendorf method), as well as the tear resistance of thick paper, plastic cloth, electrical tape, etc. [Related Standards] GB/T 3917.1 FZ/T60006 FZ/T75001 ISO1974/9290 ASTM D1424/5734, etc Technical parameters: 1. Tear force range: A: 0-16N B: 0-32N C: 0-64N 2. Force measurement accuracy: â?¤ �± 1 graduation 3. Sample size: 100 �? 63mm 4. Cut length: 20 ± 0.2mm 5. Tear length: 43mm 6. External size: 400 two hundred and ten �? 395mm 7. Weight: 30Kg
2.) Main technical indicators: 1. Maximum impact energy: 3J (30cm * kgf) 2. Sample size: 100 100mm or 100mm 3. Sample fixture specifications: 60mm 89mm 4. Punch size: 12.7mm 25.4mm 12.7mm punch matching Use of 89mm sample fixture 25.4mm punch matching Use of 60mm sample fixture 5. Minimum scale value of the dial: 0.01J/grid 6. Impact energy error: ± 1% 7. Product size: length 630 * width 210 * height 680mm 1. Overview: This machine is used to measure the impact toughness of non-metallic film materials such as plastic and rubber, as well as metal foil materials. The newly upgraded pendulum release mechanism eliminates manual operation, making it faster and more user-friendly. The working principle of this machine: The hemispherical punch impacts and passes through the thin film sample at a certain speed, measures the energy consumed by the punch, and evaluates the anti pendulum impact energy of the thin film sample based on this energy.
The purpose of this machine is to evaluate the impact on product performance after customers may accidentally drop the product during experimental use. It is applicable to the original posture and accelerated drop test of small Consumer electronics such as mobile phones, PDAs, telephone electronic dictionaries, CDs, MP3, etc; Function: Vacuum absorption drop, adjustable drop height, manual lifting, precise impact location, with acceleration and speed measurement Multi angle drop device: 0 �°, 45 �°, 90 �° Drop height indication: 1cm Effective height of drop: 300-1800mm (optional 2000mm) Maximum allowable weight of test piece: 2kg Falling floor medium: steel plate Drop range: 500x600mm Air source used: 0.5Mpa Machine size: W800XD900XH2200mm Power supply: AC220V 50HZ 5A
Model specifications: DL8501A Capacity selection: 500kg Force unit :N kgf lbf etc Displacement unit: mm cm Inch , etc Stress unit :Pa Kpa Mpa Gpa KN/ N/ , etc Power resolution: 1/500,000 accuracy: 0.5% Travel resolution: 1/500,000mm Sampling speed: 100Hz Effective travel: 1400mm (including fixtures) Speed setting range: 0.1-1000mm/min Arbitrary settings Speed accuracy : ±0.2% Test sample range: 160mm Shutdown method: Overload shutdown, emergency stop button, automatic shutdown for specimen damage, automatic shutdown for upper and lower limit settings motor: Step motor power: 0.6KW Host size (WxDxH): 550x380x1550mm machine weight: 130kg source :AC220V/50Hz 1.Main purpose The DL8501A microcomputer type material testing machine is specialized in testing the strength of various materials, finished products, and semi-finished products. Various fixtures and fixtures are selected, suitable for measuring the mechanical properties and related physical parameters of various materials in states such as tension, compression, bending, shear, tearing, peeling, and puncture. It can be used for stretching, compression, three-point bending, four-point bending, shearing, tearing, peeling, finished shoe piercing, cardboard box holding, foam cyclic compression, spring tension and compression, and various dynamic and static cyclic tests. This machine adopts Windows Chinese window program settings, which is easy to operate and automatically stores test data (load stroke curve, load attenuation life curve, test results), and all test conditions can be stored.
2 Introduction This machine is used to test the extension and contraction life of various spring wires such as Handset wires. It is continuously and repeatedly stretched by pneumatic power during power on to check the damaged parts and extension and contraction times. After power off, the station stops for counting. 3 Main technical parameters 3.1. Capacity: 50kg 3.2. Unit switching: kg, N, LB 3.3. Load decomposition degree: 1/250,00 3.4. Load accuracy: 0.25% 3.5. Maximum stroke: 1500mm (including fixture) 3.6. Test speed: 30-300 mm/S 3.7. Displacement resolution: 0.01 mm 3.8. Display device: LCD display screen (capable of displaying the number of tests per workstation) 3.9. Driving method: precision rodless cylinder 3.10. Overall dimensions (L * W * H): approximately 550 * 360 * 2090mm 3.11. Weight: 50kg 3.12. Power supply: 1 , 220V, 15A or specified
4. Performance specifications 1. Temperature range: RT+40 -70 2. Humidity range: 90% RH 3. Temperature control accuracy: ± 3 *Note: The performance guarantee of item # 5 above requires testing at a distance of 1/6 of each wall surface in the testing area, and must be measured after stabilizing with temperature and humidity for 30 minutes 4. Equipment placement space: at least 207 two hundred and seven 201cm (W H D) 5. Power supply: AC220V 50HZ 5 System structure 1. Heating system: Scaled stainless steel electric heating tube 2. Humidification system: glass nozzle 3. Temperature sensing system: Made of stainless steel SUR304Pt100 4. Control system: The control system adopts a P.I.D controller, which controls temperature and humidity simultaneously a. Controller specification: Accuracy: Temperature ± 2.0 +1 digit, with upper and lower limit standby and alarm functions 5. Box material Inner box material: SUS # 304 mirror stainless steel plate Outer box material: SUS # 304 stainless steel plate
II. Performance and Technical Parameters: Experimental load: 40Kg Frequency range: 0-200HZ Sweep frequency range: 0-200HZ No load displacement amplitude (adjustable range P-P): 0-5mm Vibration direction: vertical Vibration motor power: 1.5KW Working table size L.W.H: 450X450X40 (mm) Boundary dimension L.W.H: 450X470X420 (mm) Machine weight: approximately 86KG Power supply voltage: 220V/�± 5% Equipment structure diagram: (The picture is for reference only) Overview and Purpose: The amplitude modulation, frequency modulation, and sweep frequency vibration testing machine series consists of three parts: a vibration table, a platform, and a control console. The vibration machine is designed with a humanized control concept, and has a beautiful and elegant appearance with smooth lines. Its use is simple, convenient, and ultra quiet, so there is no need for special engineering during installation. The addition of anti-interference circuits inside the equipment solves the interference caused by strong electromagnetic fields on weak current control circuits, making the working performance of the vibrator more reliable and stable. This frequency sweep series vibrator is widely used for quality system certification and vibration inspection of various industrial products such as communication, electronics, automobiles, motorcycles, home appliances, etc. This type of equipment is suitable for detecting early faults, similar to actual working condition assessment and structural strength testing. This series of products can also be used for scientific research and vibration resistance inspection tests on production lines of various products, providing a strong and reliable guarantee for the quality of your products.
model Basic parameters DL-60 DL-90 DL-120 DL-160 DL-200 Dimensions inside the test chamber (Long �? wide �? High) 600*450*400mm 900*600*500mm 1200*1000*500mm 1600*1000* 500mm 2000*1200* 600mm Test chamber volume 108L 270L 600L 800L 1440L Volume of brine tank 15L 25L 40L 40L 40L Laboratory temperature NSS ACSS 35�±1â??ï¼?CASS 47�±1â?? Pressure barrel temperature: NSS ACSS 47�±1â??ï¼?CASS 63�±1â?? Brine temperature: 35â??�±1â?? Spray mode Ordinary type without suffix letter, economical type (M) continuous spray (A), programmable spray (B) Spray volume: 1.0ï½?2.0ml/80cm2/h(Different mist collectors need to be converted according to this ratio) Spray pressure 1.00+0.01kgf/cm2 source AC 220V 10A AC220V 10A AC220V 16A AC220V 16A AC220V 16A
2.Technical parameters: 1. Box size in the laboratory: DL-120LA W1200 * D1000 * H500 (mm), Approximate dimensions: 2300 * 1300 * 1400mm, 2 standard temperatures, Laboratory temperature: nss acss 35 ± 1 /pass 50 ± 1 Pressure bucket humidity: nss acss 47 ± 1 /pass 63 ± 1 , Salt water temperature: 35 ± 1 It can be heated without water, 3 volumes, Laboratory capacity: 800L Salt water tank capacity: 40L, 4 compressed air, Compressed air pressure: 1.00 ± 0.01kgf/c 5 spray volume: 1.0-2.0ml/80c /h, 6 spray mode: continuous spray, timed spray, programmable spray, intermittent spray, demisting in the box, 7. Power supply: AC220V 50Hz/20A, 8. Material: The entire PVC board is made, and the salt spray testing machine adopts advanced three-dimensional reinforcement technology internally, with a strong and solid structure that never deforms. 9. Water adding method: An automatic water adding system is adopted, which has the function of automatically replenishing the water level when the water level is insufficient, and the test is not interrupted. 10. Nozzle: Precision glass nozzle, salt spray testing machine used for 4000 hours to ensure no crystal blockage. 11. Protection system: Equipped with dual over temperature protection and insufficient water level warning to ensure safe use. 12. Temperature controller: digital display, PID control, high stability platinum temperature probe, error 0.3 13. Heating method: The laboratory adopts direct steam heating method, which increases the temperature quickly and shortens the standby time of the salt spray testing machine. 14. The spray tower is equipped with two conical dispersers, which have the functions of guiding fog, adjusting fog volume, and even fog falling. 15. The pressure bucket adopts Henry's law to heat and humidify, and provide the humidity required by the salt spray testing machine laboratory. 16. Opening method: Pneumatic automatic opening is adopted, The salt spray testing machine is one of the "three prevention" (humid heat, salt spray, mold) testing equipment for artificial climate environments. It is an important salt spray testing equipment for studying the adaptability and reliability of various environments in industries such as machinery, national defense, light industry, electronics, light industry electronics, and instruments. This salt spray testing machine can perform neutral salt spray tests in accordance with GB/T2423.17 "Basic Environmental Testing Regulations for Electronic and Electrical Products - Test Ka: Salt Spray Test Method", and can also perform acetate spray tests. This salt spray tester complies with CNS, ASTM, JIS and ISO standards. The salt spray test is to test the corrosion resistance of the products after coating, electroplating, Anodizing, anti-rust oil and other anti-corrosion treatments on the surfaces of various materials.
3. Main technical parameters 3.1. Y-axis movement range: 130mm 3.2. X-axis movement range: 150mm 3.3. Spacing between two marking columns: 270mm 3.4. XY axis drive method: electric drive 3.5. Z-axis click method: motor driven 3.6. Click power: 500gf or customize weights according to customer requirements. 3.7. Striking force: 500gf or customized weights according to customer requirements. 3.8 Click speed: 10-100 times/minute 3.9. Scratch speed: 30-2000mm/min 3.10. XY torque: 8.0Nm 3.11 Testing station (linkage): 2 3.12 Control functions: A. Digitally set running speed (X/Y/Z axis) B. Digitally set running displacement (X/Y axis) C. Counting value display setting: 0~999999, any setting, power off memory D. Line drawing method: long (square), straight line. 3.13. Shutdown method: automatic shutdown by counting values 3.14. Working voltage: 220VAC 50HZ 3A 3.15. W780 * D570 * H520mm 2ã?? Instrument Introduction 2.1 Product Usage Click marking tester is a special testing device for small consumer electronic products such as e-books, tablet computers, mobile phones, walkie-talkies and Electronic dictionary. It mainly performs durability tests on hand written screens and touch screens, such as grid drawing, clicking, and rubbing. 2.2 Equipment characteristics Using PLC control, simply select a starting point on the screen of the product to be tested, and then set the testing stroke in the device to run. This machine can perform four modes of testing: X-line, Y-axis line, XY axis square or rectangular, and Z-axis click. And it uses a stepper motor combined with a ball screw as the motion mechanism, with accurate positioning, high accuracy, and low noise; Long lasting and durable.
1.)Performance specifications: 1. Machine model: DL-4100, 2. Capacity: 100L, 3. Temperature range: -40 -150 , 4. Humidity range: 20% -98% RH, 5. Temperature and humidity control accuracy: ± 0.5 ± 2% RH, *Attention: The performance guarantee of items # 2-4 above should be measured after 30 minutes of stable temperature sensing 6. The temperature and humidity are evenly distributed: ± 2.0 ± 5.0% RH, *Note: The performance guarantee of item # 5 above requires testing at a distance of 1/6 of each wall surface in the testing area, and must be measured after stabilizing with temperature and humidity for 30 minutes 7. Inner box size: 500 high Width 400 500mm deep, 8. Outer box size: 1700 high Width 1000 1500 mm deep, 9. Equipment placement space: at least 2000 2000 2000mm (W H D) , 10. Power supply: AC220V 4.5KW, 50HZ
1. Main technical parameters, Model: DL-7802B-6A13, Product Name: Wire Bending Testing Machine (Wire Swing Testing Machine), Test angle: 0~± 180 can be set arbitrarily, and the left and right angles can also be set to be inconsistent, Test speed: 0-100 times/min, set arbitrarily, Station: 6 stations in total, with each group recording the number of tests separately, Independent testing: Each group can be tested independently, and 6 groups can also be tested simultaneously, Counting setting range: 1~99999999 times, any setting, Shutdown method: Broken wire shutdown, can switch between single broken wire shutdown and 6 sets of broken wire shutdown, Weights: 6 each for 50g, 100g, 200g, 300g, and 500g, Machine size: 1400 450 1300mm (length, width, height), Machine weight: 130kg, Power supply: 1 AC220V 2A or specified, 2. Equipment Introduction The 360 degree swing testing machine meets the requirements of relevant standards such as UL817, such as "General Safety Requirements for Flexible Cord Components and Power Cords". Suitable for manufacturers and quality inspection departments to conduct bending life tests on power cables, DC cables, headphone cables, USB cables, etc. Used to test the reliability of wire products under specified speeds, angles, and weights.
Model: DL1220S Product name: Fully automatic insertion and extraction force testing machine Maximum test stroke: 0-150mm Maximum test speed: 0-300mm/min Maximum test load: 50kg Minimum fine adjustment distance: 0.01mm X-axis travel distance: 0-75mm Y-axis travel distance: 0-75mm Load units: N, lb, gf, Kgf can be freely switched Transmission mechanism: ball screw Power system: stepper motor Machine weight: 80kg Machine size 400 * 300 * 980mm Power supply 1 AC220V 2A or specified 2. Introduction This machine is suitable for testing various types of connectors, such as insertion force, extraction force, plastic retention force, and service life. Through computer analysis, it can accurately measure the load, stroke, and corresponding change curve of the tested object. It can also accurately control the stroke, speed, target measurement times, and pause time of connector insertion and extraction force testing. Especially with various specialized clamps and fixtures, the connectors can be more automatically centered and aligned during testing, without the problem of "eating one side" occurring. By using the Chinese screen settings in Windows, the operation is simple and convenient, and all data can be stored (such as test conditions, displacement, curve plots, life curve plots, inspection reports, etc.), making it a reliable high-performance testing instrument. Equipped with a dynamic impedance testing system, it can test the insertion and extraction force while also testing the dynamic impedance and drawing (load stroke impedance curve diagram)
Model: DL3020, Stroke mm: 300 * 200 * 200, Boundary dimension mm: 625 * 777 * 1080, Workbench mm: 460 * 360, Total weight (kg): 280KG, Glass bearing capacity (kg): 15, Z-axis lifting distance: 200MM, Working distance: 90 mm, Measurement accuracy UM: XY (3+L/200) um, Resolution of grating ruler: 1um, CCD resolution industrial grade: 800 line high-definition, Zoom objective magnification: 0.7-4.5X, Total magnification: 20-180 times, optional 20-220 times, Object field of view: 7-1.1MM, Surface light and contour light of the light source: white LED, with continuously adjustable brightness, Power supply: 220V �± 10%, 50 Hz. Electrical equipment requires reliable grounding: the grounding resistance is less than 4 ohms, Working environment: temperature 20 â??�± 5 â??, temperature change ï¼? 2 â??/hr, humidity 30-80%, vibration ï¼? 0.002g and lower than 15Hz, Imager characteristics: Utilize optical principles for non-contact measurement; Suitable for all fields with the purpose of two-dimensional measurement; It is the best measurement solution for small, thin, soft, and component parts; Accurate measurement can be achieved for elements such as points, lines, circles, angles, etc; And it has powerful report output function, high-quality, economical, and practical; Ultra high cost-effectiveness with all functions of flat measurement. imager: measure all plane dimensions; Hardware, main features: Fully cast aluminum worktable, column combination lightweight body. Precision transmission equipment design for fast movement. Precision P-level linear guide rail and V-shaped guide rail, with extremely high straightness, Ensure machine accuracy and service life. Sony Color CCD from Japan, with higher definition measurement images. Flexible lighting with contour light, surface light, and coaxial light (optional), high clarity, and unparalleled measurement accuracy. High precision optical ruler, every 1 micron is crucial.
b. Technical parameters: Measuring area: x=500mm, y=600mm, z=400mm Overall dimension: 1250 X 1380 X 2380 mm Workbench load-bearing Max Part Weight: 800kg Machine weight: 1800kg Length accuracy MPEe: â?¤ 1.7+L/300ï¼? �¼ M) Detection ball accuracy MPEp: â?¤ 2.5 �¼ M Scale resolution: 0.1um Max 3D Speed: 500mm/s Max 3D Acceleration: 900mm/s �² c. Advantages: Patient double passive vibration damping: The use of coordinate measuring machines is mainly in production factories, which inevitably leads to vibrations caused by nearby machine tools or transport vehicles, which has a fatal impact on the accuracy of coordinate measurement. Building earthquake resistant foundations is a basic idea, but it will increase additional costs and trouble. Our three coordinate support adopts a dual passive damping mechanism to prevent the impact of low-frequency vibration, greatly ensuring measurement accuracy and reducing the trouble of taking seismic foundation measures. High quality granite workbench: The granite work platform is the overall support of the machine, and its quality affects the overall performance of the machine. Our three-dimensional granite material is processed as a whole, stress free, rust and corrosion resistant, easy to maintain, low thermal expansion coefficient, and small deformation affected by temperature. Effectively reducing the vibration of the measuring machine and improving the performance of the entire machine DL-654 is a high-end bridge type coordinate measuring machine developed and designed independently. During the production process, every component is strictly screened, and during the assembly process, it ensures perfect and reasonable connection between the components. Then, it is calibrated according to the ISO10360-2 standard, using high-precision laser interferometers for calibration. Later, it is also tested using standard testing tools (square rulers and step gauges) certified by the DKD organization. Therefore, the final customer will use genuine German technology, high-quality, and high-precision coordinate measuring machines.
modelDL313082T Maximum compressive strength2T Degree of decomposition1250000 Testing accuracy05 Operation modeMicroprocessor Unit switching KgNLBKN Test spaceLWH8008001000mm Compression speed standard 103mmmin Report ItemsSerial number peak value average value set pressure holding value memorable Structure and controlMicrocomputer operating system servo motor ball screw Safety devices Overload protection overvoltage protection limit protection device External dimensions LWH14008001700mm Motor power 400W Net weight 400Kg source AC220V10 2 Product Usage The cardboard box compression testing machine is the most direct testing instrument for checking the compressive strength of cardboard boxes or other packaging containers It is used to determine the compressive capacity of cardboard boxes and can be used for testing the holding pressure stacking The test results can be an important reference for the height of finished packaging boxes stacked in factories or an important basis for designing packaging boxes It can execute national or international standards such as GB ISO ASTM BS DIN JIS for testing and is an ideal testing and research equipment for various factories technical supervision departments commodity inspection institutions research institutes and colleges and universities 3 Product features 1 The machine structure adopts an aluminum extruded sealing plate treated with advanced baking paint with builtin highprecision low resistance gapless double ball screws and guide columns improving load efficiency and structural rigidity 2 The control system adopts Panasonic digital AC server to control high response frequency AC motors ensuring high efficiency smooth transmission low noise and speed accuracy within 02 of the transmission system 3 The microcomputer system uses a commercial computer as the main control machine combined with our companys TM testing software to complete all experimental parameter settings working state control data collection and analysis processing result display and printing output 4 The product performance is stable and reliable with high measurement accuracy powerful testing software functions and easy to understand operation
Maximum test force:10KN Force unit:N Kgf ibf N KN Testing accuracy:Not greater than 1% of the total range Test itinerary:1100mm without fixture Print Project:After saving the data, it can be printed and converted into a PDF document Test speed:0-300mm/min computer settings Shutdown method:Automatic shutdown due to fracture control mode ;PC control Power source :Stepper motor Transmission mode :Ball screw drive Host size :Approximately 800 * 500 * 1550mm; Display method:Computer full Chinese display Testing items: Real time value, maximum value, fracture value, elongation, tear strength, proportion of fracture points, etc 2.1. Purpose: Test the tension, pressure, shear, peeling, tearing and other tests of metal, wire, leather, fabric, plastic and other products, and comply with various tensile and pressure testing standards. PC control, can input testing standards into the system, and conduct testing according to different standards. 2.2 Characteristics: This machine is driven by a stepper servo motor, ensuring smooth operation and low noise. The key components of this machine are all high-quality and reliable products, making your experiments precise and effective. This machine is fully computer-controlled and can save and print test data.
2.3 Technical parameters: Maximum test force: 50kg, 100kg, 200kg (choose any one) Force unit: Kgf bf N Test itinerary :1000mm without fixture Print Project: Print after saving data Test speed :0-500mm/min can be set Shutdown method: Automatic shutdown due to fracture control mode : PC control Power source :Stepper motor Transmission mode :Ball screw drive Host size: Approximately 500 * 500 * 1430mm; Display method :Computer full Chinese display (or English system) Testing items: Real time value, maximum value, fracture value, elongation, tear strength, proportion of fracture points, etc 2.1. Purpose: Test the tension, pressure, shearing, peeling, tearing and other tests of wires, leather, fabric, plastic and other products, and meet various tensile and pressure testing standards. 2.2 Characteristics: This machine is driven by a precision motor, ensuring smooth operation and low noise. The key components of this machine are all high-quality and reliable products, making your experiments precise and effective. This machine is fully computer-controlled and can save and print test data.
4.Main technical parameters 4.1. Capacity: 5, 10, 20, 25, 50100200kg (optional) 4.2. Unit switching: kg, N, LB 4.3. Load decomposition degree: 1/250,00 4.4. Load accuracy: 0.25% 4.5. Maximum stroke: 1000mm (excluding fixtures) 4.6. Test speed: 30-300 mm/min 4.7. Displacement resolution: 0.01 mm 4.8. Display device: touch screen (capable of displaying and printing test times, test values, maximum values, fracture values, etc.) 4.9. Motor: AC motor 4.10. Overall dimensions (L * W * H): 550 * 500 * 1240mm 4.11. Weight: 80kg 4.12. Power supply: 1 , 220V, 15A or specified 4.13. Delivery: One set of tension fixtures 5. Introduction to System Functions 5.1. It has tensile and pressure testing functions. 5.2. It has a pull stop function. 5.3. It can display displacement, has functions such as elongation, pressure, and other material testing machines. 5.4. There is an automatic stop alarm function for overload load setting. 5.5. It has an automatic save function, and can coexist with manual and automatic testing data up to ten times. 5.6. Use a list format to display the saved test data. 5.7. With an administrator password, users can modify their startup password to make machine management more secure. 5.8. Using software to calibrate the load value is extremely easy to calibrate. 5.9. The internal functions are set with full Chinese prompts, making the operation convenient and simple. 5.10. Rich testing functions, capable of conducting tensile tests, pressure tests, compressive tests, elongation tests, etc. 5.11. Display method: Real time display on the touch screen. 5.12. Tensile range: Standard configuration 200kg (optional). 5.13. The accuracy is 1/25000. 5.14. It can print test data and dates, making it easy to view test data for each stage 5.15. Conversion of three types of force units: N, Kg, and LB. During the testing process, 5 sets of test data at any position can be manually and automatically captured and printed. 7. Introduction This product tests the tensile strength, compressive strength, and elongation of various materials, semi-finished products, and finished products. It can perform tests such as peeling, tearing, bending, bending, and compression, and is suitable for use in industries such as metals, plastics, rubber, textiles, synthetic chemicals, wires and cables, leather, etc. 8. Design standards ASTM D903, GB/T16491, GB/T1040, GB/T8808, GB13022, GB/T 2790/2791/2792, CNS-11888, JIS K6854, PSTC-7, etc
Temperature range :RT~450 Temperature fluctuation : ±0.2 Temperature uniformity : ±1 Temperature display resolution: 0.1 Time display resolution:0.1S Barrel diameter: .095 ±0.005mm Outlet length: 8.000 ±0.025mm Loading cylinder diameter: 9.550 ±0.025mm Weight accuracy: ±0.5% Data output method:Micro automatic printing output Cutting method Integrated manual and automatic cutting Test load 8 levels in total, 8 sets of weights
