Rebar Bending Machine Pins & Related Products Introduction
Machine Compatibility & Applicability
We can customize rebar bending machine pins to meet your needs.
Suitable for: Automatic Stirrup Benders, Manual Rebar Bending Tables, CNC Link Benders
About Our Company
We focus on researching, developing, producing and selling core cutting tools and accessories for the rebar processing industry. Our main products and advantages include:
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
Core Cutting Tools: Quality & Features
Rebar Cutting Blades
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
Rebar Bending Blades
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
Rebar Machinery Accessories
We provide a full range of accessories for different rebar machines, with the following advantages:
Accessory Range
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
Product Advantages
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
Our Strengths
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
Professional Rebar Bending Machine Pins
Various diameters available, with the following features:
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
Why Different Diameters for Forming Shafts?
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.
I. Why Heat Treatment Hardness (HRC) Matters for Bending Machine Pins
Bending machine pins are core load-bearing parts, under radial pressure, torsion and friction. Heat treatment hardness directly affects:
Service life
Working stability
Operational safety
Pins with poor hardness fail quickly, causing equipment breakdowns or accidents.
Key Functions of Proper Hardness
1. Wear Resistance & Deformation Prevention
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.
2. Compressive/Torsional Strength & Fracture Prevention
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.
3. Lower Maintenance Costs & Continuous Operation
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.
II. Drawing Parameters for Custom Special-Shaped Pins
Drawings must include basic dimensions, process requirements and material requirements to ensure accurate matching. Details are as follows:
1. Basic External Dimensions (Tolerances Required)
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)
2. Process & Heat Treatment Requirements
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.
3. Material Requirements
45# steel, 40Cr, International Material Comparison Table
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） |
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Global Supply: High-Strength Rebar Bending Machine Pins & Bushings
We manufacture premium Rebar Bending Machine Pins, Center Mandrels, and Bending Bushings (Material: 45# Steel, 40Cr, 42Crmov) designed for heavy-duty construction use. Our pins undergo high-frequency quenching for superior hardness and wear resistance, ensuring precise bending angles and extended service life in automatic and manual rebar benders. Available in all standard and custom sizes for global machine compatibility.
Multi-language Index for Rebar Processing Equipment Accessories:
English: Rebar Bending Machine Pin | Bending Bushing | Center Mandrel
French (Français): Axe de cintreuse de fer à béton | Douille de cintrage | Mandrin central
Portuguese (Português): Pino de máquina de dobrar vergalhão | Bucha de dobra | Mandril central
Polish (Polski): Sworzeń do giętarki do prętów | Tuleja gnąca | Trzpień gnący
Turkish (Türkçe): İnşaat Demiri Bükme Makinesi Pimi | Bükme Burcu | Merkez Mili
Vietnamese (Tiếng Việt): Chốt máy uốn sắt thép | Bạc lót uốn | Trục uốn trung tâm
Thai (ภาษาไทย): สลักเครื่องดัดเหล็กเส้น | ปลอกดัดเหล็ก | แกนดัดกลาง
Filipino: Pin ng Rebar Bending Machine | Bushing pang-bend | Center Mandrel
Arabic (العربية): مسمار ماكينة ثني حديد التسليح | جلبة ثني | عمود دوران مركزي
Hindi (हिन्दी): सरिया मोड़ने की मशीन का पिन | बेंडिंग बुशिंग | सेंटर मैंड्रेल
Indonesian (Bahasa Indonesia): Pin Mesin Tekuk Besi Beton | Bushing Penekuk | Mandrel Tengah
Malay (Bahasa Melayu): Pin Mesin Membengkok Rebar | Sesendal Pembengkok | Mandrel Tengah
Dutch (Nederlands): Wapeningsstaal buigpen | Buigbus | Centrale doorn
Swedish (Svenska): Riktpinne för armeringsbockare | Bockningsbussning | Centrumbult
Hungarian (Magyar): Betonvas hajlítógép csap | Hajlítópersely | Központi tüske
Greek (Ελληνικά): Πείρος μηχανής κάμψης οπλισμού | Δακτύλιος κάμψης | Κεντρικός πείρος
Danish (Dansk): Armeringsbukker stift | Bukke bøsning | Centerdorn
Norwegian (Norsk): Armeringsstål bøyepinne | Bøyebøssing | Senterbolt
Finnish (Suomi): Raudoitustangon taivutustappi | Taivutusholkki | Keskikara
Czech (Čeština): Čep ohýbačky betonářské oceli | Ohýbací pouzdro | Středový trn
Romanian (Română): Bolt mașină de îndreptat armătură | Bucșă de îndoire | Mandrin central
Slovak (Slovenčina): Čap ohýbačky roxorov | Ohýbacie puzdro | Stredový tŕň
Bulgarian (Български): Щифт за машина за огъване на арматура | Втулка за огъване
Croatian (Hrvatski): Klin stroja za savijanje armature | Čahura za savijanje | Središnji trn
Ukrainian (Українська): Палець для згинального верстата | Втулка для згинання арматури
Azerbaijani (Azərbaycan dili): Armatur bükmə maşını pimi | Bükmə vtulka | Mərkəzi mil
Bengali (বাংলা): রড বেন্ডিং মেশিনের পিন | বেন্ডিং বুশিং | সেন্টার ম্যান্ড্রেল
Tamil (தமிழ்): கம்பி வளைக்கும் இயந்திர பின் | பெண்டிங் புஷிங் | சென்டர் மாண்ட்ரல்
Persian (فارسی): پین دستگاه خم کن میلگرد | بوش خم کننده | مندریل مرکزی
Hebrew (עברית): פין למכונת כיפוף מוטות ברזל | בושינג לכיפוף | מנדרל מרכזי
Afrikaans: Versterking-buigmasjien pen | Buigbus | Sentrale spindel