Commodity: CK45 concrete delivery cylinder

Grade: DIN2391-2 ST52, EN10305-1 E355, C45E,S45C, CK45,ASTM A519 SAE1045, 27SiMn,etc.

Manufacture method: cold drawn+honed+internal hard chrome plating+polishing, hot rolled+externally machined+deep hole bored+honed+internal hard chrome plating+polishing.

Delivery condition: BKS for cold drawn tubes, Quenched+tempered for hot rolled tubes.

Size: ID of 180mm - 230mm.

Machining as per technical drawing.

Hard chrome plating thickness: 0.2mm-0.25mm, or 0.25mm-0.3mm.

Roughness of internal surface after chrome plating and polishing: 0.25um max.

Internal surface hardness: HV830-HV880.

Packing: protective packing and external packing by plywood boxes.

Shipment: effected by 20ft container on FCL basis.

Based on the facilities we have,the following services are available:

1. Machining: both external surface machining and machining as per drawing.

2. Deep hole boring

3. Skiving&roller burnishing.

We are specialized manufacturer of cylinder tubes and cylinder barrels with OD upto 325mm or ID upto 250mm. 

Third party inspection is welcome. 

Guarantee and Warantee: within 6 months after shipment of cargo.