Product Introduction
Mechanical four rope clamshell grabs bucket is a kind of operation suitable for ports, bulk carriers, large grain depots, bulk depots.
Engaged in small-particle overflow materials, it is an ideal tool for the loading and unloading of bulk materials that are easy to leak, such as grain, bulk fertilizers, and fine mineral sands.
Mechanical four rope clamshell grabs bucket is not easy to leak when the material is full and running.
Mechanical four rope clamshell grabs bucketstructure and shape are reasonable, the steel is good, the ratio of the weight of the grasping material to the weight of the grab reaches 1.5-1.92, and the fullness reaches 95-100%.
Mechanical four rope clamshell grabs bucket with a fullness of 95%~100%, it is an ideal gripper for small-grained loose objects.
Mechanical four rope clamshell grabs bucket bearing beam structure is shortened, the strength is good, and the weight is light.
Dustproof and waterproof, it can operate underwater.
Mechanical four rope clamshell grabs bucket is used in the grain and mining industries.
Mechanical four rope clamshell grabs bucket is more conducive to grabbing materials from the corners of the carriage and cabin.
The main bushings are made of bearing steel, the pin shaft materials are all 40cr, high temperature resistant bearings are used on the pulleys, and double-port rubber oil seals are added. The edge is made of wear-resistant alloy structural steel as the edge plate, which is easy to weld and repair, and has good impact resistance.
Technical parameters
| Model | Volume (m³) | Density (t/m³) | Self weight (t) | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | Pulley diameter (mm) | Working height (m) | Steel wire diameter (mm) | Rated lifting weight (t) |
| CS10[3.3]4F | 3.3 | 1.75 | 4 | 2200 | 3064 | 3609 | 4111 | 1800 | Ø520 | 11 | Ø24 | 10 |
| CS10[5]4F | 5 | 1.2 | 4 | 2500 | 3313 | 3414 | 3903 | 2050 | Ø520 | 11.5 | Ø24 | 10 |
| CS10[7]4.4F | 7 | 0.75 | 4.4 | 2946 | 3762 | 3788 | 4417 | 2213 | Ø520 | 12 | Ø24 | 10 |
| CS16[5.5]6.2F | 5.5 | 1.75 | 6.2 | 2800 | 3480 | 4016 | 4582 | 2430 | Ø560 | 13.5 | Ø28 | 16 |
| CS16[7]6.3F | 7 | 1.2 | 6.3 | 2900 | 3830 | 3825 | 4468 | 2690 | Ø560 | 13 | Ø28 | 16 |
| CS16[12.5]6.5F | 12.5 | 0.75 | 6.5 | 3300 | 4144 | 4209 | 4936 | 2968 | Ø560 | 12.5 | Ø28 | 16 |
| CS20[7]7.5F | 7 | 1.75 | 7.5 | 3000 | 3092 | 4290 | 4872 | 2580 | Ø650 | 14.5 | Ø28 | 20 |
| CS20[15]8.8F | 15 | 0.75 | 8.8 | 3810 | 4340 | 4482 | 5398 | 3270 | Ø650 | 14.5 | Ø30 | 20 |
| CS25[9.3]9F | 9.3 | 1.75 | 9 | 3200 | 3951 | 4451 | 5031 | 3000 | Ø720 | 14 | Ø32 | 25 |
| CS25[12.5]9.8F | 12.5 | 1.2 | 9.8 | 3000 | 4321 | 4802 | 5786 | 3300 | Ø720 | 14.5 | Ø32 | 25 |
| CS25[18]10.5F | 18 | 0.75 | 10.5 | 4000 | 4760 | 4850 | 5807 | 3500 | Ø720 | 15 | Ø32 | 25 |
| CS30[22]12.5AF | 22 | 0.8 | 12.5 | 3953 | 4820 | 5162 | 5911 | 3600 | Ø920 | 15 | Ø36 | 30 |
| CS40[20.5]15AF | 20.5 | 1.2 | 15 | 4352 | 4945 | 5313 | 6387 | 3500 | Ø920 | 17 | Ø40 | 40 |
| CS40[32]18AF | 32 | 1 | 18 | 5000 | 5403 | 5991 | 7428 | 4100 | Ø920 | 17 | Ø40 | 40 |
| CS50[40]22.5AF | 40 | 0.6 | 22.5 | 5380 | 5819 | 6452 | 8000 | 4400 | Ø1020 | 18 | Ø46 | 40 |
Case
DAFANG CRANE project case-Mechanical grab is used on overhead cranes
- Grab type: Mechanical Four Rope Clamshell Grabs Bucket ,grab volume 4m3
- Material specific gravity：2t/m3
- Project type: Used in metal powder magnetic material companies, the grab wire rope adopts stainless steel temperature-resistant type.
- Price reference：The mechanical grab has a simple structure and costs about 24.39% of the hydraulic grab, making it the best choice if you are on a limited budget.
How to choose the right grab
- Clarify your purpose：
Before delving into the options, please clarify your specific requirements.Ask yourself：
- What materials do you want to deal with?(Logs, scrap metal, stone, etc.)
- What tasks will the grab perform?(Loading, sorting, dismantling, etc.)
- What type of device will it be connected to?(Gantry crane, overhead crane)
- What is the specific gravity of the material you grab?The number of cubes of the grab?
What is the tonnage of your crane equipped with a grab?
According to the characteristics of the material being grabbed, the grab is usually divided into four basic types: light, medium, heavy and super heavy.
| The type of material to grab | Grab material | Capacity weight(t/m³) |
| Light | Coke, slag, grains, potatoes, medium-quality anthracite lime, cement, soil, gravel, clay, broken bricks, etc. | 0.5~1.2 |
| Medium | Peat, large pieces of anthracite coal, compacted coal, clay, limestone, gravel, salt, gravel, bricks, bauxite, flakes of iron oxide, cement, sand and bricks in water, etc. | 1.2~2.0 |
| Heavy | Limestone, heavy clay, small and medium-sized ores, hard rock, rod-shaped iron oxide, iron ore, lead concentrate powder, etc. | 2.0~2.6 |
| Overweight | Large ores, large manganese ore, sedimentary agglomerated lead ore powder, etc. | 2.6~3.3 |
- Accessory compatibility: Ensure that the grab is compatible with existing equipment.
- Budget considerations: The price range of the grab is different.Balance your budget based on the function and durability of the grab.
- Comments and suggestions: Research online, read user reviews, and seek suggestions from industry peers.
- Go to the crane manufacturer for on-site inspection and testing before purchasing: test the grab under real conditions as much as possible.Evaluate its performance, ease of use, and overall functionality.
Keep in mind that choosing the right grab requires a balance between functionality, safety, and cost.By considering these factors, you will find the perfect grab that can increase productivity and ensure smooth operation.
