Hot Forging ST52 A105 S355 High Precision Steel Cylinder Sleeve
We are the manufacturer specialized in machining heavy duty forging parts for nearly 18 years.Our products, such as drive shaft, Forging Hollow Shaft, Shaft Sleeve, Eccentric shaft, Forging rod, Large bolt, Heavy Duty Hydraulic Cylinder, are widely used in coiled material, petroleum, metallurgy, mine, machinery and transportation industry. etc.
||a- Open die forging (product range: Max length 16000mm; Max weight 35 Mt)
b- Ring forging (product range: Max OD 4000mm; Max height 500mm; Max weight 4Mt)
||Normalizing, Tempering, Annealing,
Q + T (Quenching and Tempering)
||Pre-machining, Finish machining
||Sand blasting, Coating, Painting
|forged Hollow shaft
||Forge+drill & bore+turning +milling
||Forging+drill & bore+ turning
|Other parts in deep-hole
||Forge+ drill & bore+turning+mill
1.Inquiry with drawings in details.
2.Confirm steel material, chemical compositions, mechanical properties, tolerance.
3.Confirm payment terms,order materials or check material in stock.
4.Check material chemical compositions, material weight, dimensions.
5.Cut materials record weight, making mould for casting of pr-hearting for forging.
6.Forging ratios, heat treatment ,dimension check.
7.Rough machining, UT test,heat treatment.
8.Fine machining, UT test, dimension inspection, mechanical properties test.
9.Customer inspection, packing, delivery arrangement.
Steel ingot making
EAF+LF+VD/VAD or ESR
EAF + LF + VD+ Forging+ Normalizing & Tempering + Rough machining + UT test + Quenching & Tempering + Precision machining
Chemical composition report, Physical properties report, Heat treatment report, Dimensional inspection report, NDT report
Nondestructive test (NDT)
UT ( ultrasonic testing ), MT ( magnetic particle testing ), PT ( penetrant testing)
Quality certification : ISO 9001: 2008, IQNET
Various of shafts made of alloy steel, carbon steel, stainless steel that mainly used for transmission, mining equipment and so on have good mechanical properties. Drive shaft is composed by axel tube, flexible sleeve and cardan to joint or assemble the fitting parts, makes the items movable or rotation. Its usually made of light alloy steel tube that have good enduring twist.
- High-precision dimensional tolerance;
- Excellent mechanical properties;
- Produce different dimension based on customer’s requirements;
- Advanced manufacture equipments and inspection devices;
- Excellent technical personality;
- Control the production procedure strictly;
- Pay attention on the package protection;
- Quality full service
Packing and Delivery