Shenzhen Dallast Technology Co., Ltd

Our History and Our Factory

Shenzhen Dallast Technology Co ., Ltd. it is hydraulic cylinder manufacturing enterprise integrated with professional designing, production and sales . Company focused, specialized in various types of hydraulic cylinder,our product range:Single and double acting cylinder; dump truck hydraulic cylinder; construction cylinder; agricultural cylinder; telescopic cylinder; small hydraulic cylinder; welded cylinders; hydraulic lift cylinder.Is widely used in dump trucks , dump trailers, garbage trucks, excavators, loaders , forklifts, cranes and other projects , ships, mining machinery and fire engines , sanitation vehicles and other special vehicles, agricultural machinery , heavy machinery and many other fields .   

The company after decades of precipitation process, has a mature R & D to production process, technology research and development capabilities to lead the company's business development capabilities. Products are mainly used for construction machinery, agricultural machinery , ships , bridges etc ., and according to customer demand , design and manufacture of special-function hydraulic cylinder. Companies adhere to the " people-oriented , pioneering and innovative , continuing to provide customers with satisfactory service ", Business Development Department in 2016 , registered Shenzhen Dallast Technology Co ., Ltd. and DALLAST for international brands to develop business .
We hope that with the guidance of honesty, innovation , cooperation and win-win spirit of company and the craftsmanship of our staff , we can provide better service .

Product Process:

1. Raw materials entering the factory, 27SiMn, 40CrMo, ST52, 45# steel tubes or bars for choice

2. Do the pre-treatment including pickling, phosphating and saponification, and then cold-draw the seamless steel tubes.

3. Put the steel tubes into the tempering furnace to do the stress relief annealing in convenience of the subsequent the processing.

4. Multi-roll straightening machine, with 10 straightening points, achieves the automatic rolling straight improving the efficiency greatly

5. Heat treatment to obtain work pieces with different properties by changing their internal microstructure or surface chemical composition.

6. Cylindrical degree can be controlled within 0.03mm and the surface roughness is up to 0.4 by honing with range:φ40mm-φ450mm and longest length: 12000mm

7. Machining processes to obtain high precision parts with complex shapes strictly according to the detailed drawings.

8. Electroplating production process fulfills the functional and ornamental requirements for coating work pieces of different dimensions according to specific application requirements.

9. Cleaning all the parts by automatic cleaning machine in the special solution and under special temperature control effectively.

10. All the parts are assembled into complete cylinders according to the strict assembly instructions by skillful workers in dust-free workshop.

11. Do proof pressure and performance tests to check whether the cylinders can operate smoothly and stably under the specified pressure with no leakage and deformation.

12. Do the painting including high quality primer and topcoat to obtain beautiful appearance and protect the cylinders against the anticorrosion.

13. Wooden pallet or boxes packing with plastic films wrapped on the surface, suitable for long-time sea transport.

Hydraulic Cylinder Quality Guarantee System:

Program before Delivery

1. Trial Operation Test

2. Start-up Pressure Test

3. Pressure-Tight Test

4. Leak Test

5. Full Stroke Test

6. Buffer Test

7. Testing the Effect of Limit

8. Load Efficiency Test

9. Reliability Test

Every piece of hydraulic cylinder are tested and will send out only after they are pasted the each test.

Our Service

Pre-sale

(1) Instruct customers to choose the most suitable electric heating element.

(2) Designing electric heating components and electric heating equipment for customers free of charge, seeking an ideal solution.

(3) The products can be designed and manufactured according to the special requirements of customers.

Sale

(1) Strict inspection before leaving the factory.

(2) Organize shipments in accordance with the contract.

After Sale

(1) Immediately notify the customer of the logistics and express delivery of the goods after delivery, so that the customer can track their goods in time.

(2) Commissioning and trial operation of electric heating elements.

(3) The telephone directs the operator of the heating element.

(4) The problems encountered by domestic customers in the production process, our company's service personnel guarantee to give clear solutions within 24 hours.