Part number & Spec of Hengjiu timing chain, oil pump chain for forklift, transfer case chain

Oil field roller chains

Roller chain (ISO & ANSI)
Roller chains (DIN & BS)
Straight Side Plate Roller Chains
Heavy series roller chains
Double pitch precision roller chain
Stainless steel roller chains
Side-Bow Roller Chains
Oil field roller chains
Heavy-duty Cranked-link Roller Chains
Motorcycle chains
Self-lubrication roller chains
Agricultural chains
Rice Harvester Chains
Gripper Chain
Asphalt mixing and road laying industry
Cement industry
Mine and metallurgy industry
Palm oil industry
Sugar making industry
Tobacco industry
Water treatment industry
Coal industry
Grain and oil industry
Chilled food industry
Bottle washer chain
Automobile production line
Film stretch industry
Cold Drawing Machine Chains
Lumber industry
Leaf chains (AL)
Leaf chains (BL)
Leaf chains (LL)
Steel Pintle Chains
Welded Steel Chains
Stainless steel Flat-Top Chains
Engineering Plastic Flat-Top Chains
Timing Chains for American Cars
Timing Chains for Japanese Cars
Transfer Case Chains
Hydraulic-pump Chains for Forklift
Snowmobile Chains
Silent Chains for Industry application
Silent Chains for Glass Industry
Standard chain wheel
Non-standard chain wheel
Chain Equipment
High speed precision press machine
Single and Double strand chain assembly machine
Bushing former (for pitches from 6.35mm / ?” to 38.10mm / 1 1/2”)
Pin cutter (for pitches from 6.35mm / ?” to 38.10mm / 1 1/2”)
Chain riveting machine (for pitches from 6.35mm / ?” to 38.10mm / 1 1/2”)
Bush sorting machine
Plate hooking machine
High speed plate hooking machine
Hexagonal dryer tube
Cold Forging Machine
Heat Treatment Machinery
Shot peening machine
High effeciency automatic chain cutting machine
Roller chain automatically assembly line
Small Chain High Speed Four Sides Chain Riveting Machine
Big and Special Chain High Speed Four Side Chain Riveting Machine
Super High Speed Chain Pin Cutting Machine
High Speed Precision Pin Cutting Machine
High speed bush forming machine
Hydraulic press machine
Chain Assembly Machine For Big Chain And Special Chain
Big Bush Forming Machine
Chain Length Accuracy Measuring Instrument
Big chain static tensile machine
Automatic Chain Assembly Machine for Chain With Attachment
Pressure output machine
High speed bush (roller) sorting machine
Chain pre-stretch machine
Chain pin sorting machine
Chain Pin Polish Machine

Tel: +86-575-87212388
Fax: +86-575-87214388
E-mail: [email protected]
HQ address: No. 8, Yingbin Road, Zhuji City, Zhejiang Province

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Oil field roller chains

> Oil field roller chains

Oil field roller chain
HS plant which is another member of Hengjiu Group is an enterprise approved by API and it is specialized in producing oil field roller chain. In order to ensure the high reliability of these chains, the process technology of parts is of crucial importance. Compared with the manufacturing of other chains, it has the following characteristics:

Link joint:
Wider waist can improve the link joint fatigue strength;Higher grade of alloy steel materials and strictly controlled chemical composition give consistent heat treatment results;
Ball drift calibration after heat treatment and the existence of compressive pre-stress give it optimal ability to resist crack advance;
Pin bores of loose plates for connecting links have a slightly conical shape that ends in an iterference fit so that when installed the fatigue resistance of the chain is not reduced.

Axis pin, bushing, roller:
Optimized carbonitriding heat treatment process allows the axis pin to keep nearly perfect linearity;
Bushing and roller formed with extrusion have higher roundness, axiality and surface roughness;
Furnace atmosphere is detected and controlled exactly by the heat treatment facilities;
Reliable detection methods from specialized laboratories are used.