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Application
Sensor applications for full safety monitoring of tower crane are embodied in the following areas
1)Tower crane installation. Crane foundation is the basic assembly unit, the practice has proved that major security incidents are due to the problems of crane foundation. Vigor sensors can measure the installation angle, during installation, vigor sensor can real-time detection, send the warning information in time.
2)The height of the tower crane automatically rise. During the automatically rise, after adding new steel frames, the operation room is still perpendicular to the ground or not will have a great impact on the safety.
3)Tower crane vertical lifting process. Measuring the bending angle and tilt angle of the swing arm, the tilt angle of crane.
4)Tower crane horizontal delivering process. Measuring the bending angle and tilt angle of swing arm, the tilt angle of crane.
5)In the heavy windy and rainy weather conditions, measure the swing angle of crane.

Tower crane installation.


The height of the tower cran e automatically rise.
Tower crane vertical lifting process.
Tower crane horizontal delivering process.
In the heavy windy and rainy weather conditions, measure the swing angle of crane.

Application of sensors:
Tilt Beam sensor
- High resolution, accuracy & stability
- High safety remote signal transmission distance>500m
- U-Shaped openings in both ending, easy to connect sensors
- IP65protection
- Alloyed & anodized aluminum housing, corrosion-resistant, wear-resistant, artistic

SST20 low cost tilt sensor
- Low cost, high performance, suitable for batch application
- 50Hz refresh rate, 10Hz response frequency
- 0.07accuracy@-15~50?
-0.2% cross-axis error
- Available to horizontal, vertical, headstand, etc installation methods
- IP67protection
- 9~36VDC power supply
- Sensing elements survive to 1500g shock while operating

SST810 dynamic tilt sensor
- No drift, dynamic tilt measuring
- Lowest cost, high performance
- Built in MEMS tri-axis accelerometer and tri-axis gyroscope
- Dynamic repeatability 0.5
- Highest refresh rate 1000Hz
- X/Y/Z angular rate & acceleration data available
- Autonomous working, do not need any external auxiliary
- Mounted wherever needed

The grab ship unloader is used for handing coal, iron ore and other bulk material at sea port.

Dhhi group co., ltd. Is a leading manufacturer of ship unloader since first delivery 1988.

More than 144 units of grab ship unloaders (from 500t/h to 3500t/h.) have been supplied to the ports and terminals all over the world.

The ladle car is a special transport vehicle that isused by the metallurgical enterprises to transport the molten iron from the blast furnace to the converter shop, pig casting machine shop and ingot casting shop, for tilting operation.
In 1970, dhhi started to design the 45t and 65t ladle cars independently. In 1987, dhhi designed, jointly with nippon steel corporation, the 320t torpedo ladle car, through which the design and manufacturing levels of dhhi are greatly improved. In 1988, dhhi designed and manufactured the 320t torpedo ladle car independently, which was the biggest in china at that time, for shanghai baosteel group corporation. In 1989, dhhi independently developed the 320t tubular ladle car and obtained the national patent. Dhhi is able to manufacture 150t380t series ladle cars through many years of practice, accumulation and continuous innovation and improvement. Rich experience accumulation in design, manufacturing, inspection, installation, transportation, commissioning, etc. Together with high quality after-sales service makes the ladle cars designed and manufactured by dhhi enjoy very high prestige among the customers. More than 90% of ladle cars used in china are made by dhhi, and the products are exported to 12 regular customers in five countriesjapan, usa, india, turkey and brazil. Up to 1084 ladle cars manufactured by dhhi are currently used in 24 steel enterprises in china. The ladle car design and manufacturing technology of our company has been mature and we have become the leading specialist in this field in china.

We could supplie a good quality spare parts on jcb backhoe loader 3cx and 4cx aftermarket parts.

All kind of customized forklift attachment. Few of them are given below.
1., fork extension
2., hook fork attachment
3., cage fork attachment
4., roll forward skips
5., base empty stillage
6., cement hoppers
7., bin rotators
8., access platforms
9., parrot beak attachment
10., drum tongs
11., drum grab
12., drum positioner
13., drum tines
14., drum rotator
15., empty drum carrier
16., gas bottle handler
17., clear view boom
18., low profile ram attachment
19., roll handler
20., big bag tines
21., jib attachment
22., fork mount hook
23., battery changer
24., fork extension
25., coil support
26., telescopic forks
27., multi pallet handlers
28., wider load supporter
29., fork adaptors
30., scoop attachment
31., push broom sweeper
32., magna sweep
33., fork fenders
34., self-locating yokes for mechanical grabs.
35., motor grader attachment
36., snow plough blades
37., shovel attachment.
38., floor scrapper
39., reel attachment
40., ladle tippler
41., loading bucket
42., container spreader
43., board lifters
44., well ring lifter

This hydraulic lift ram cylinder only is made up by S.G. Iron and it is suitable for ford. OE number of this hydraulic lift ram cylinder is D3NN-478F.

This ram cylinder sheet metal plate is suitable for small ford.

This hydraulic lift arm shaft bush is suitable for big ford. Oe number of this hydraulic lift arm shaft bush is 80nh-531b-a.

This is old model of the hydraulic lift plunger yoke. Oe number of this hydraulic lift plunger yoke ( old model ) is c5nn-546-c.

This is the old model of the hydraulic lift rocker. Oe number of this hydraulic lift rocker ( old model ) is c7nn-535-c.

RC-A5-I load moment indicator is applicable to all types of level-jib and flat-top tower cranes.The system adopts 51 single chip and 5 inch LCD,it indicates real-time working state of tower crane and record,once overload,it will cut off circuit and prevent dangerous operation,ensure crane safety operation.
It provides the operator with actual and correct information on working states of tower crane on as follows through LCD:actual load,rated load,hook height,hook amplitude,slewing angel and wind speed etc.If the load reaches 50% or 80% specified moment,it will pre-alarm.If it reaches 105%,it will alarm and prevent the trolley automatically from moving outward and the hook from lifting upward.

RC-108 mobile crane load moment indicator adopts PAT technology from Germany,which available for mobile cranes in complex conditions.The system has press buttons for related working conditions.The clients can selected different working conditions to achieve safety protection on mobile crane.It also has functions of pre-alarming,overheight,overload,alarming.The clients can easily to judge the overload and overheight as per operation status.

RC-A11-II integrated load moment indicator with anti-collision&zone protection system and remote online monitoring system.It indicates real time working states of tower crane and tower crane group both on tower crane and on the online computer.The system adopted full-touch mode of operation,and the most advanced ARM system,higher integration,greater precision data acquisition.The system can show the operator and manager the most comprehensive working states of tower crane in operation.
At the same height:the system will auto detect and deal it with if any interference within running radius of slewing mechanism.
At the different height:the system will auto detect and deal it with if any interference between higher hook and lower slewing mechanism.
The system can set up to 10 different protection zones,prohibit flying over sensitive areas such as power lines,schools,highways,building etc.Try to achieve max.working area of tower crane within ensuring tower crane safety.

All kinds of lifting equipments & accessories viz: mini elec hoists / / wire ropes & wire rope slings / polyster webbing slings / dee shackles / turn buckles / chain slings with hook & rings / cargo lashing ratchets / swivel assembly / kenter shackle / ratchet lever hoist / vertical & horizontal plate lifting clamps / eye hooks / safety latch / connecting link / bow shackles and many more lifting items

Wooden crates for small / delicate items & thermocol + cardboard packing for machinery items

None used provision crane
- Maker : oriental(Korea)
- Type : hpc090-0511
- Made : 2012. Korea
- Working load : 5.0 t
- max. Hoisting lift : 30.0 m
- working radius : max. 11.0 m ~ min. 6.0 m(0~58)
- hoisting speed : 10 m/min at 2nd layer
- luffing time(up/down) : 45/45 sec
- slewing speed : 0.6 rpm
- electic, motor : 24.0 kw
- wire rope ; 14 (galvanized steel wire rope)
- q'ty : 2
- location : korea
Both cranes are located in korea.

Sungsan Corporation is a leading supplier of new and used construction equipments such as Excavator, Wheel loader, Truck crane, Crawler crane, Dozer, Air compressor, Crushers, Concrete batching plant, Cement-block making plant, etc.

We are also supplying spare part (Roller, Idler, Pump, Teeth, Valve, Filter, etc)
We have been in business since 1991 in the international market.

Capacity 1-5 ton; moq:6 pieces; payment terms: t/t; wheel base 1192mm; overall length 1550mm; self weight 61-63kg; overall width 525mm; color green;lifting height 115mm; front roller 200*45;rear roller 82*82-60

Capacity 1-5 ton; moq:6 pieces; payment terms: t/t; wheel base 1192mm; overall length 1550mm; self weight 61-63kg; overall width 525mm; color green;lifting height 115mm; front roller 200*45;rear roller 82*82-60

Normally, single girder gantry cranes are most widely used and often in open storage yard.
load capacity: 3~16tons
span: 12~30m
travelling speed: 20 or 30m/min
lifting speed: 8 or 0.8m/min
working temperature: -20~+40
control model: padent control or remote control
applications: widely used in open storage yard
duty group: class C or D
To ensure the safety, our cranes are equipped with:
Crane traveling limit switch.
Weight overload protection device.
Lifting height limit device.
Voltage lower protection function.
Phase sequence protection function.
Emergency stop function.
Rain cover for outside hoist, driving units, electric cubicle.
Warning indicator: flashing lights and warning sounds.
Wireless infra-detector for anti-collusion.
We also manufacture
Light crane includes four levels A1 to A4.
Single girder bridge crane 0.5 t / 1 t / 2 t / 3 t / 5 tons / 10 tons / 16 tons / 20 tons.
Medium crane includes two levels A5 to A6.
Single girder bridge crane 5 tons / 10 tons / 16 tons / 20 tons / 30 tons.
Single-beam gantry crane 5 tons / 10 tons / 16 tons / 20 tons / 32 tons.
Double girder bridge crane 5 tons / 10 tons / 16 tons / 20 tons / 32 tons / 50 tons.
Double girder gantry machine 5 tons / 10 tons / 16 tons / 20 tons / 32 tons /40.5 tons / 50 tons / 60 tons / 75 tons / 100 t / 150 t.
Heavy duty crane includes two levels A7 to A8.
Double girder bridge crane 5 tons / 10 tons / 16 tons / 20 tons / 32 tons / 50 tons / 74 tons / 75 tons / 80 tons / 100 t / 125 t / 140 t / 150 t / 160 t / 180 t / 200 t / 225 t / 240 t / 280 t / 300 t / 320 t / 350 t.
Single-beam gantry crane 10 tons / 15 tons / 20 tons / 32 tons / 40 tons / 50 tons.
Double girder gantry machine 5 tons / 10 tons / 16 tons / 20 tons / 32 tons / 50 tons / 75 tons / 100 t / 150 t / 200 t.
OEM is welcomed, if you have any interest, pls feel free to contact us.





electrical and other parts packaged by high quality plywood crates,beams packaged by plastic woven cloth.

1- LD Model Single Girder EOT Cranes, Lifting capacity from 0.5t -32tons.
2- LH Model Hoist type Double Girder EOT Cranes, Lifting capacity from 2t- 50/10tons, Work duty: M3-M4.
3- QD Model Winch type Double girder EOT Cranes, Lifting capacity from 5t -660/200/50tons, Work duty: M5- M7.
4- LB Model Explosion proof type Single girder EOT Cranes, Lifting capacity from 0.5t- 20tons.
5- QZ Model Grab type EOT Cranes, Lifting capacity from: 5t- 20tons.
6- YZ Model Casting type Double girder EOT Cranes, Lifting capacity from 10t -125/50tons.
7- QB Model Explosion proof type double girder EOT Cranes, Lifting capacity from 5- 75/20tons.
8- Slewing type EOT Cranes, Lifting capacity: 5+5t -20+20tons.
9- LX model suspension type single girder EOT Cranes, Lifting capacity: 1t -10tons.
10- All kinds Manual type EOT Cranes,
Please kindly tell us your detailed requirement and the working conditions, we can help you to choose which model is much more suitable to your requirement.

We also manufactureLight crane includes four levels A1 to A4.
Single girder bridge crane 0.5 t / 1 t / 2 t / 3 t / 5 tons / 10 tons / 16 tons / 20 tons.
Medium crane includes two levels A5 to A6.
Single girder bridge crane 5 tons / 10 tons / 16 tons / 20 tons / 30 tons.
Single-beam gantry crane 5 tons / 10 tons / 16 tons / 20 tons / 32 tons.
Double girder bridge crane 5 tons / 10 tons / 16 tons / 20 tons / 32 tons / 50 tons.
Double girder gantry machine 5 tons / 10 tons / 16 tons / 20 tons / 32 tons /40.5 tons / 50 tons / 60 tons / 75 tons / 100 t / 150 t.
Heavy duty crane includes two levels A7 to A8.
Double girder bridge crane 5 tons / 10 tons / 16 tons / 20 tons / 32 tons / 50 tons / 74 tons / 75 tons / 80 tons / 100 t / 125 t / 140 t / 150 t / 160 t / 180 t / 200 t / 225 t / 240 t / 280 t / 300 t / 320 t / 350 t.
Single-beam gantry crane 10 tons / 15 tons / 20 tons / 32 tons / 40 tons / 50 tons.
Double girder gantry machine 5 tons / 10 tons / 16 tons / 20 tons / 32 tons / 50 tons / 75 tons / 100 t / 150 t / 200 t.
OEM is welcomed, if you have any interest, pls feel free to contact us.





electrical and other parts packaged by high quality plywood crates,beams packaged by plastic woven cloth.