Phone:
86-15852949220
NANJING ALAS INTERNATIONAL CO., LTD
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We can customize rebar bending machine pins to meet your needs.
Suitable for: Automatic Stirrup Benders, Manual Rebar Bending Tables, CNC Link Benders
Main products: Rebar cutting blades, rebar bending blades, and all types of rebar machinery accessories
Wide compatibility: Works with rebar cutting machines, bending machines, and straightening-cutting integrated machines
Application fields: Construction engineering, bridges & tunnels, rebar processing plants, precast component production lines
Material & process: High-quality materials, overall quenching and low-temperature tempering
Performance: Wear-resistant, impact-resistant, smooth cutting without jamming
Design: Square modular design, 4-sided rotation, lower replacement and maintenance costs
Customizable: Made to match your bending machine model and bending radius
Performance: Precise heat treatment, good fatigue resistance and dimensional stability
Advantage: Accurate bending angle (no rebound), no chipping or deformation
Cutting machines: Fixed blade holders, connecting rods, sliders, gear shafts
Bending machines: Central shafts, bending discs, clamps, positioning baffles
Straightening machines: Straightening wheels, traction wheels, cutter assemblies
High quality: Made to original equipment standards, high dimensional accuracy
Easy to install: Perfectly compatible with main machines
Long service life: Surface treatment (carburizing, quenching, galvanizing) for rust and wear resistance
Advanced equipment: CNC machining centers, hardness and precision testing tools
Strict quality control: Inspections from raw materials to finished products
Custom service: Non-standard tools and accessories made for your equipment and needs
Customer benefit: Improve processing efficiency and reduce production costs
Wide compatibility: Fits GW40, GW42, GW50, GW60 series and other industrial rebar benders
Product types: Center mandrels, work pins, rollers (for all bending radius needs)
Customizable: Length and diameter can be made according to your drawings
Rebars of different diameters need different bending radii.
Changing the forming shaft ensures accurate bending angles and avoids rebar damage.
45# steel and 40Cr steel need proper heat treatment to show their best performance.
Service life
Working stability
Operational safety
Pins touch rebar and bending discs directly; rebar has high hardness and slides during bending.
Low HRC leads to quick wear, dents or deformation, affecting bending accuracy.
Qualified pins: Surface hardness HRC45~55 (core load-bearing surface: HRC58~62) for wear resistance and stability.
Pins bear large radial pressure and slight torsion during bending.
Low hardness causes deformation; poor hardness-toughness match causes brittle fracture.
Tempered pins (quenching + high-temperature tempering, HRC45~55) have both strength and toughness, avoiding fractures and safety hazards.
Qualified pins wear slowly and need less frequent replacement.
Poor hardness leads to frequent replacement, higher costs and construction delays.
Summary: HRC is key to wear resistance, deformation resistance and fracture resistance. Pins with unqualified hardness cannot meet working needs.
Pin section diameter + tolerance (e.g., h6/h7 for mating sections, f8 for non-mating sections); section length + tolerance
Special-shaped structure dimensions (keyway/groove width/depth, taper angle/length; mark no transition angle clearly)
End dimensions (flat/round/countersunk head; mark spherical radius for round heads, countersunk hole depth/diameter for countersunk heads)
Heat treatment process: Specify overall process (e.g., tempering, surface hardening + tempering) + hardness value (e.g., overall HRC45~50, surface HRC58~62); mark hardness testing position.
Base material: Recommended 45# steel,40Cr or 42CrMo (42CrMo is better for special-shaped heavy-duty pins).
Chinese GB standards | American AISI/SAE standards | Japanese JIS standards | German DIN standards | Russian GOST standardss |
45#steel | 1045 | S45C | C45（1.1191） | 45 |
40Cr | 5140 | SCr440、SCr440H | 41Cr4（1.7035） | 40X |
| 42CrMo | 4140 | SCM44O | 42CrMo4（1.7225） | |
Nanjing Alas International Co., Ltd. is a professional industrial tooling manufacturer focused on shear blades, bending dies, shredder blades, and custom wear parts. We offer full application engineering, material selection, setup guidance, and after-sales support to global customers.
Tell us your requirements, and our engineering team will provide professional solutions for blade specification, tool life optimization, and cost-effective production.