Computerized Torsion Testing Machine

1.Introduction and application-torsion testing machine  it is applicable to static mechanical properties test for metallic, nonmetallic materials and various construction member, like transmission shaft and semi-axis;  adopting horizontal structure, computer screen display, digital data acquisition and control system as well as fully digital ac servo system;  adopting planetary cycloid pinwheel speed reducer to drive, with features of even loading, stability, without impact, accurate data acquisition.  if equipped with special grips, it can perform torsional force, torsional angle, and angle stiffness for metals and rubber cohesive layers.  parameters modulus g, proof strength, non-proportional torsion ïp, upper yield strength ïeh, lower yield strengthïel, torsional strength ïm, etc can be measured and calculted on software automatically.   2. Main technical parameters- torsion testing machine 1Max torqu1000nm 2Measuring range of torqu20nm-1000nm 3Torque resolution1/±200000 4Relative error of indicating value of torqu1% 5Torsion angle resolution0.01° 6Torsion speed0-360°/min 7Relative error of torsion speedWithin ±1% of set value 8Max distance between grips600mm 9Axiality of two gripsLess than ï1.0mm 10Central height of main axis170mm 11Power0.75kw 12Voltag220v±10%  50hz 13Dimension1750x600x950mm

It is used to measure the plastic deformation capacity and surface and internal defects during unidirectional or bidirectional torsion which the metal wires with diameters of 10 mm~30 mm.

JR-N wire winding and torsion testing machine is a testing machine used to test the toughness and adhesion performance of overhead stranded wire frame and (or) reinforced galvanized steel wire, which meets the requirements of GB/T3428-2002 Galvanized Steel Wire for Overhead Stranded Wire: Winding and Torsion Test.

1.Applications ans features-torsion testing machine The machine is used to test the anti-impact properties under dynamic load for metal materials. It can be used for metallurgical mechanical manufacturing industry and scientific research departments. This machine adopts PC computer control, electrically raising pendulum and impact, computer measurement, calculation, screen display results and can print results, with high efficiency and accuracy. After impact to specimen, it can automatically raise pendulum with the left energy and make preparations for the next test, easy to operate, efficiently. It is especially applicable to the metallugical and mechanical industries which usually need to make plenty of impact tests. The PC can display impact absorption energy, impact toughness, pendulum rising angle and average value and can print test data and average value, satisfying Metallic Materials-Charpy Impact Test Method. 2.Main specifications-torsion testing machine 1 Impact engergy 150J 300J 5 Pendulum pre-raising angle 150° 6 Distance between pendulum center to impact point(sample center) 750mm 7 Impact speed 5.2m/s 8 Span of impact specimen support 40mm 9 round corner of nipper jaw R(1.0-1.5)mm 10 round corner of impacting edge R(2.0-2.5)mm 12 impact knife thickness 16mm 15 Specimen size 10X10X55mm 16 Dimension 1500X850X1340mm 17 Weight 850kg 18 Power and voltage three-phase four-wire system 380V 50Hz

Torsion spring forming machine Specifications: Wire diameter 0.15~1.0mm Max length of front leg 50 mm Max length of rear leg 50 mm Max length of wire feed 100 mm Spindle Axis Y Axis Max spindle vertical stroke 40 mm Min value 0.1 Degree Max value 359.9 Degree Max coils 999 Coil Working direction L/H, R/H Home action Unlimited Motor capacity AC 750W Cam axis X Axis Min value 0.1 Degree Max value 359.9 Degree Max production speed 120 RPM Motor capacity AC 750W Power 3p 220V 50 / 60Hz Pneumatic air pressure 4~5 kg/cm2 Machine gross weight 320 kg Machine dimension 950 x 950 x 1700mm

This machine adopts the technology of europe and it has 10. 4" or 15" display screen designed novelly, the color of screen can be matched. Programming 10, 000 groups to assure the stability of performance. The paper delivering section is driven by AC servo motor so that, the noise can be reduced and the working speed can be increased highly. The paper feeding accuracy of paper location can reach 0. 001mm around. Hydraulic pressure section adopts the rapid pressure increasing system to finish the pressure regulation. The electric control system adopts Panosonic PLC, relilable characteristic, large capacity, it can store data for about 300, 000 hours and can upgrade to perform remote monitoring. The low pressure control section adopts OMRON, LG, TOSHIBA, SCHNEIDER, BDI to make the control stably and efficient. Model: CHM-92CD/115CD/137CD Main specification: Cutting width: 92cm/115cm/137cm Paper feeding depth: 92cm/115cm/137cm Master power: 3kw/4kw/4. 5kw Min. Paper-weight pressure: 150dan Max. Paper-weight pressure: 4000dan/4500dan/5500dan Cutting accurancy: 0. 2mm tolerance. Min. Cutting datumn 2. 5cm/2. 5cm/3. 0cm Cutting speed: 45cuts/min Voltage: 360-400V. Packing dimension: 92CD: 225*140*191cm 115CD: 275*140*200cm 137CD: 295*140*200cm.

Specifications: Six-point, suspension mounting system True constant pull tensioning system Linear ball bearing string gripper with roller string guide and tension switch 11-90 pound (4.5-40.9 kilograms) tension range 360 degree swivel turntable with brake Two slim diamond-coated, heavy-duty dual-action thumb-adjustable stainless steel swivel clamp (fixed clamps): 2 PN-1012 tennis clamps Handle any diagonal stringing (fan patterned frames) Features: Digital electronic control panel with keypad and LCD digital display Microprocessor controlled, electronic pulling and monitoring system provides the precise tension control and also displays the actual pulling tension. Multiple speed settings for fast and slow pulls Pre-stretch option provides 5% or 10% pre-stretch over the set tension. Knot overtensioning option increases the current tension by 10%. This design is to reduce the amount of tension lost when tying off. Two programmable tension memory bank Self-test diagnostic feature Unique power selection switch for the desired voltage 100/110V or 220/240V. Power input with fuse protection Six-point, suspension mounting system provides 10-point maximum supports and eliminates any racquet distortion. Micro-adjustable head and throat mounting posts, very easy to adjust. Single-action quick mounting arms: turn a single knob to control both shoulder support arms. Large V-shaped shoulder supports perfectly fit against the frame and also provide the frame with the maximum shoulder support. Padded head and throat mounting posts secure any frame (including deep V-shaped throats), no cosmetic damage to any frame. Linear ball bearing string gripper with roller string guide and tension switch grips the string automatically. There is no string pull or muscle to use. Also no crimp or damage to any string. Easy fingertip to activate the tension pull. See operating procedures. Dual-action swivel clamps can move in any direction up and down; and can handle all types of racquets without extra accessories. 2 slim diamond-coated, thumb-adjustable stainless steel swivel clamps (PN-1012). Stringing has never been as easy and efficient as it is now with the Eagnas thumb-adjustable clamp. All-metal spring-assisted swivel clamp base: much easier to use and no muscle needed. Just need one-eighth turn to lock and release the base. See operating procedures. 360 degree racquet rotation with brake Convenient tool storage area Convenient reel holder Machine base with level-adjustable pads Height adjustable from 42" to 46", easy to adjust and string in a more relaxed posture Tools: Allen wrenches - 6mm, 5mm, 3mm. Free stringing tools: 1 DP-507 diagonal cutter, 1 NP-500 needle nose pliers, 1 BS-809 tennis awl, and 1 PN-3092 string mover User's manual Free illustrated stringing tutorial guide: show you how to string racquets step by step String all racquets: tennis, oversized tennis, widebodies, longbodies, fan patterned, squash, racquetball, and badminton. Easy to convert to table-top stringing machine; just need to remove the stand. 1 year warranty for the electronic tension head 1 year warranty for all the string clamps 2 years warranty for all the mechanical parts

1íóHost machine is with double column type, which make the conformation compact and arrangement reasonable. 2íóAdopt precise electro-hydraulic servo proportional valve. The speed is fast and the controlling accuracy is high. 3íóMechanic limit pistons protection assures the safety of testing. 4íóSetup overload protection which acn stop automatically,when the load exceeds the maximum by 2-5%. ó=íóControlling system This machine is with digital and multi-channel loop of measuring and controlling system. It adopts force closed loop control technique and has the function of constant stress loading and load keeping. Loading speed can be arbitrarily set and the testing curves can be real time displayed. Characteristics of softwareú¦ 1íóThe software integrate bending resistant test and compression resistant test procedure , such as bricks, cement, concrete and mortar. 2íóThe software divide testing procedure as follows: tile compression resistant executive program(GB13544í¬2000), cement compression resistant testing program (GB17671í¬1999), concrete specimen testing program(GB/T5001í¬2002)and mortar testing program(GB170í¬90). 3íóThere is no subsection in all process. (Or classify according to the requirements of customers.) 4íóComplete test in batch automatically and adjust breaking of specimen. 5íóWindows Style can be controlled by human or computer.It is easy to manage and control,collect and calculate. 6íóRecord and save testing datas automatically. Overall dimensionú¿mmú¬ Host machine 950í-650í-1405 1120í-660í-650 910í-580í-1800 910í-580í-1940 HPS í¬ í¬ 950í-650í-1405 950í-650í-1405 Weightú¿kgú¬ 750 850 3050 3250

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