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NANJING ALAS INTERNATIONAL CO., LTD
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Rebar Blade

Our Rebar Blades are the professional's choice for high-intensity construction and metal fabrication. Engineered to withstand the repeated shock of shearing high-tensile reinforcement bars, these blades are manufactured from top-tier tool steels like Cr12MoV and H13.
Through specialized vacuum heat treatment, we achieve a perfect balance of hardness (50-62 HRC) and impact toughness. Each blade features precision-ground edges and exact bolt-hole alignment, ensuring a seamless fit for your machinery and burr-free cuts on every bar.
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High-Performance Rebar Blade: The Ultimate Solution for Precise Steel Cutting

Introduction

Downtime in construction costs money. A worn or chipped rebar blade can stop your project completely. Our rebar blades cut fast, clean and easy—so your machine works well, even in hard conditions.

Our Blade Advantages

  • Quality Materials: We use Cr12MoV or H13 tool steel for strong hardness and toughness.

  • Advanced Heat Treatment: Every blade gets vacuum induction hardening (50–62 HRC) to avoid early dulling.

  • Perfect Fit: Precision-ground to fit most global brands (GQ, GWH, hydraulic portable cutters).

  • 4-Sided Use: Most block-style blades are reversible—4 sharp edges for the price of 1.

How to Choose & Use

Follow these simple tips to pick and use your blades:

1. Choose the Right Blade Material

Material decides how hard, tough and long-lasting your blade is. Pick based on what you’re cutting:
  • H13 Material: Popular high-quality choice. Wear-resistant, tough and heat-resistant. Great for long, heavy cutting of high-strength rebar (no bending or chipping).

  • Cr12MoV Material: Hard and wear-resistant (harder than regular alloy blades). Good for hard cold-rolled rebar. Note: Less tough—don’t use for high-impact or large-gap cutting.

  • 9CrSi Material: Cheap and practical. Easy to process. Good for ordinary medium- and low-strength rebar (ideal for small/medium projects).

2. Match Your Machine (Custom Sizes Available)

  • Shape Matching:
    • Square: 4 usable edges (rotates to last longer) – best for large-scale work.

    • Rectangular: 1 or 2 usable edges – best for small-tonnage cutters.

  • Size Matching: Machines like GQ40, GQ50, GQ60 need specific blade size (thickness, length, bolt holes). Follow your machine’s manual.

3. Choose Blades for Your Rebar Type

  • Ordinary Round Steel: Soft and easy to cut. 9CrSi or Cr12MoV works well (saves money).

  • High-Strength Ribbed Rebar: Hard, ribbed surfaces wear blades quickly. Use H13 (resists wear and chipping for heavy use).

4. Best Manufacturing Process

Choose blades made with full grinding and vacuum heat treatment. They have even hardness, stay sharp, and don’t chip or dull easily.

Custom Rebar Blades

  • Our custom blades have better hardening and toughness—fixing the common problem of breakage when cutting high-strength rebar.

  • H13 blades are great for international trade: they last long, so you replace them less (saves shipping and customs costs).

Why Buy Direct from Factory

Buying directly from us means wholesale prices, strict quality checks, and custom sizes for your unique machine.


Rebar blade specifications and dimensions

NO. Product Name Specification   Dimensions (length x width x height/thickness) ) Material Remarks
1

rebar blade size

78*78*17   mm 9crsi,SKD-11,H13 Customization services are available; we can   manufacture according to your drawings, with a minimum order quantity of 2 piece.
2 80*80*17   mm
3 80*80*30   mm
4 83*83*16   mm
5 83*83*26   mm
6 83*83*26  mm
7

90*90*20mm

8

90*90*26mm

9

100*100*20mm

10

100*100*30mm

11 110*110*20   mm
12 100*30*75 mm
13 85x65x30 mm
14

Handheld   rebar cutting machine blade

26×20×10   mm
15 30×24×11   mm
16 36×28×14   mm
17 40×30×15   mm



Blade Metal Materials Grade Correspondence Table

Base Grade

Steel Category

Chinese Standard GB/T 1299

American Standard ASTM

German Standard DIN (W-Nr.)

Japanese Standard JIS

H13

Hot Work Die Steel

4Cr5MoSiV1

H13

1.2344

SKD61

Cr12MoV

Cold Work Die Steel

Cr12MoV


1.2601

SKD11

9CrSi

Alloy Tool Steel (Cutting Tool Steel)

9CrSi


1.2108


rebar  blades drawing

GQ50 REBAR CUTTING BLADE drawingGQ60 REBAR CUTTING BLADE drawing

Installation location of the rebar cutting blade

Blade installation area of GQ series rebar cutting machine

Global Supply: High-Performance Rebar Blades & Cutting Solutions
As a professional manufacturer, we provide premium Rebar Blades (Material: H13, 9Crsi, Cr12MoV) designed for heavy-duty rebar cutters, shears, and processing machinery:
  • English: Rebar Blade | Reinforcing Bar Cutting Blade

  • French (Français): Lame pour fer à béton | Couteau de coupe de barre d'acier

  • Portuguese (Português): Lâmina de vergalhão | Faca de corte de barras de reforço

  • Polish (Polski): Nóż do prętów zbrojeniowych | Noże do cięcia stali zbrojeniowej

  • Turkish (Türkçe): İnşaat Demiri Bıçağı | Demir Kesme Makas Bıçakları

  • Vietnamese (Tiếng Việt): Lưỡi dao cắt sắt xây dựng | Dao cắt thép thanh

  • Thai (ภาษาไทย): ใบมีดตัดเหล็กเส้น | ใบมีดสำหรับเครื่องตัดเหล็กข้ออ้อย

  • Filipino: Blade ng Rebar | Kutsilyo para sa Pagputol ng Bakal

  • Arabic (العربية): شفرة قص حديد التسليح | سكاكين مقصات قضبان الحديد

  • Hindi (हिन्दी): सरिया काटने वाला ब्लेड | रिबार कटिंग चाकू

  • Indonesian (Bahasa Indonesia): Pisau Potong Besi Beton | Bilah Shearing Rebar

  • Malay (Bahasa Melayu): Bilah Mesin Pemotong Besi Rebar | Pisau Gunting Keluli

  • Dutch (Nederlands): Betonstaal snijblad | Mes voor betonijzer schaar

  • Swedish (Svenska): Armeringsklippblad | Skär för armeringsstål

  • Hungarian (Magyar): Betonacél vágó penge | Betonacél nyíró kés

  • Greek (Ελληνικά): Λεπίδα οπλισμού | Μαχαίρι κοπής σιδήρου

Are high-hardness steel rebar cutting blades prone to chipping?

wear-resistant-rebar-cutting-machine-blades-10-pcswear-resistant-rebar-cutting-machine-bladesrebar-cutting-blade-stock-photos-01

FAQ

Question 1: What are the main material options for our rebar blade?

Based on different working conditions and budget requirements, we offer three general industrial-grade alloy steel materials:

9CrSi (Alloy Tool Steel): An economical choice. It has good hardenability and machinability, suitable for cutting ordinary medium-to-low strength rebar, and is widely used in small and medium-sized projects.

Cr12MoV (Cold Work Die Steel): High-end wear-resistant type. High carbon and high chromium content, after heat treatment, it has excellent wear resistance, making it an ideal choice for continuous cutting of high-strength rebar. Its service life is much longer than 9CrSi.

H13 (Hot Work Die Steel/Red Hard Steel): High toughness and high wear resistance. It exhibits excellent resistance to chipping and thermal stability in rebar cutting applications, especially suitable for high-speed production lines or online cutting of hot-rolled rebar, and cutting of ultra-thick rebar and composite materials of scrap rebar.

Question 2: Why do my blades often chip? Is it a material problem?

Chipping is usually caused by the following factors:

Insufficient toughness: Using ultra-hard but low-toughness materials to cut large-diameter or ultra-hard rebar can easily lead to brittle fracture. In this case, we recommend switching to H13 material, as its excellent toughness can effectively absorb impact forces.

Improper clearance: Too large or too small a gap between the upper and lower blades will lead to uneven stress, resulting in chipping.

Insufficient heat treatment: Internal stress is not completely eliminated. All our blades use vacuum heat treatment technology to ensure uniform hardness from the inside out, greatly reducing the chipping rate.

Question 3: What is the biggest performance difference between 9CrSi and Cr12MoV?

Wear resistance: Cr12MoV has significantly better wear resistance than 9CrSi. Under the same working conditions, the number of cuts for Cr12MoV is usually 2-3 times that of 9CrSi.

Cost: 9CrSi is more cost-effective, suitable for projects sensitive to initial purchase costs; although the unit price of Cr12MoV is slightly higher, its lower replacement frequency results in a lower overall cutting cost per ton of rebar.

Question 4: Which material is recommended for high-strength deformed rebar (e.g., HRB500E) or thick rebar?

For high-strength or ribbed rebar, we strongly recommend H13:

If you are facing extremely high operating intensity and are concerned about downtime due to blade chipping, choose H13. Its impact fatigue resistance is top-notch in the rebar processing industry.

Question 5: Can you customize non-standard size blades according to drawings?

Yes. We understand that blade specifications vary among different equipment brands (e.g., from Italy, Germany, or China). We are equipped with a full set of CNC machining equipment, and you only need to provide the following information:

Detailed drawings (including length, width, thickness, and hole dimensions).

Material requirements (9CrSi, Cr12MoV, or H13).

Specifications of the workpiece to be processed (rebar diameter and strength grade).

We can provide a 1:1 precise customized solution.

Question 6: How to maintain the blades to extend their service life?

Regular rotation: Our blades are usually designed with 4 or 8 cutting edges. Please rotate the blade promptly when one cutting edge becomes dull.

Tighten bolts: Ensure the blades are securely installed. Any slight looseness will cause destructive impact during the cutting process.

Control the gap: Adjust a reasonable blade gap according to the rebar diameter, usually about 10% of the rebar diameter.

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Phone:
86-15852949220
Address:
Jiangning District, Nanjing
About Us

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.

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