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High-Precision Guillotine Shearing Blades

ALAS provides industrial-grade guillotine shearing blades designed for maximum cutting precision and durability. Manufactured from high-quality alloy steels, our shear knives undergo specialized heat treatment to achieve a uniform hardness that resists chipping even under heavy-duty use. Whether you are cutting thin sheet metal or thick carbon steel plates, our precision-ground edges ensure clean, burr-free results. We offer a variety of dimensions compatible with all major shearing machine brands, ensuring a perfect fit and extended service intervals.

  • Nanjing, China

  • T/T, Money Gram

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Precision Grinding: Manufacturing 4-Meter Guillotine Shearing Blades

Efficiency in metal shearing starts with a perfectly straight edge. This video showcases our large-scale surface grinding process for a 4-meter guillotine shearing blade.

To handle such extreme lengths, we utilize high-precision grinding machines that ensure a straightness tolerance of ±0.02mm over the entire blade. Every blade is crafted from premium tool steel (such as 9CrSi, 6CrW2Si, D2,H13 or Cr12MoV) and undergoes rigorous cooling during grinding to prevent thermal stress. The result is a razor-sharp, durable edge that guarantees clean, burr-free cuts for high-tonnage shearing operations.

Key Specs:

  • Max Length: Up to 6000mm in a single piece.

  • Hardness: HRC 58-62 (after vacuum heat treatment).

  • Application: Ideal for hydraulic guillotine shears and mechanical shearing machines.

Shearing Machine Blades Manufacturer

Guillotine Shearing Blades: Precision Tools for Metal Fabrication

A clean, burr-free cut in sheet metal work needs a high-quality guillotine shearing blade. Our blades work well for mild steel and high-tensile stainless steel, boosting your production efficiency and reducing material waste.
Standard Blade Lengths: 2500mm, 3200mm, 4100mm (custom lengths available)

Advanced Manufacturing Process

  • Material Choice: We offer 9CrSi, 6CrW2Si, Cr12MoV, H13, H13K, and LD. Choose the right one for your cutting thickness and material type.

  • Full-Length Heat Treatment: Our blades go through full-length vacuum heat treatment, with even hardness (HRC 50-62, up to 64 HRC for special grades) to last longer.

  • CNC Precision Grinding: Critical surfaces are ground to tiny tolerances for perfect fit and parallelism, ensuring precise cuts even for long blades.

Our Products

  • Guillotine shear blades for metal plate cutting

  • Custom industrial hydraulic shear knives

  • Replacement blades for mobile hydraulic shears (excavators)

  • ALAS blades: made of premium materials, rectangular cross-section, burr-free cuts, custom sizes per your drawings

Common Blade Materials & Uses

1. 9CrSi (Alloy Tool Steel)

  • Features: High hardness, wear-resistant, low deformation, good value

  • Cuts: Thin cold-rolled sheet, galvanized sheet, aluminum, copper, plastic, leather

  • Lengths: 2500mm, 3200mm, 4100mm, custom

2. 6CrW2Si (Alloy Tool Steel)

  • Features: Contains tungsten, stays hard at high temperatures, wear-resistant

  • Cuts: Hot-sheared materials, light stainless steel, medium-strength steel

  • Lengths: 2500mm, 3200mm, 4100mm, custom

3. Cr12MoV / SKD-11 (High Carbon High Chromium Steel)

  • Features: Very wear-resistant, easy to harden

  • Cuts: Stainless steel, silicon steel, high-strength steel, Q235, aluminum, copper

  • Lengths: 2500mm, 3200mm, 4100mm, custom

4. H13 (4Cr5MoSiV1) (Hot Work Die Steel)

  • Features: Strong at high temperatures, resists fatigue from heat

  • Cuts: Hot-rolled plate, iron plate, thick plate, scrap metal, stainless steel thick plate

  • Lengths: 2500mm, 3200mm, 4100mm, custom

5. Cr12Mo1V1 / D2 (High Carbon High Chromium Steel)

  • Features: High strength, wear-resistant, not easy to chip

  • Cuts: Stainless steel, high-strength steel, Q195/Q235/45# steel, aluminum, copper, plastic, rubber

  • Lengths: 2500mm, 3200mm, 4100mm, custom

6. LD (7Cr7Mo2V2Si) (Cold Work Die Steel)

  • Features: High strength, tough, wear-resistant, good overall performance

  • Cuts: High-strength steel, thick plate, stainless steel, hard-to-cut metals (for large hydraulic shears)

  • Lengths: 2500mm, 3200mm, 4100mm, custom

Material Selection Guide

  • Ordinary carbon steel (Q195, Q235): Choose 9CrSi or Cr12MoV (good value, all lengths available)

  • Medium/low-hardness steel, aluminum, copper: Choose SKD11 or D2 (wear-resistant, long service life)

  • Light stainless steel, medium-strength steel: Choose SKD11 or D2 (stable cutting performance)

  • Thick stainless steel, high-strength steel: Choose H13 or LD (tough, not easy to chip)

  • Hot shearing, high-temperature work: Choose H13 or H13K (resists high temperatures)

Important Notes

  • Balance hardness and toughness: Too hard = easy to chip; too soft = easy to dull. Choose based on your cutting material and load.

  • Heat treatment matters: Good materials need professional heat treatment to work well, especially for long blades.

  • Sticky materials (stainless steel, aluminum, copper): Choose Cr12MoV or SKD11 to prevent sticking and chipping.

Guillotine Shearing Blade technical specifications

NO.

Product Name

Specification   Dimensions (length x width x   height/thickness) ）

Material

Remarks

1





Guillotine Shearing Blade dimensions

508x70X22

55CrSi，
     9crsi，6crw2si
     ，cr12mov，
     H13
   

Customization   services are available; we can   manufacture according to your drawings,   with a minimum order quantity of 1   piece.

2

 508x80x25mm

3

1025x63x16

4

1025x80x20

5

1025x100x25mm

6

1100x64x16

7

1100x80x20mm

8

1100x100x25

9

1300x63x16

10

1300x63x18

11

1300x80x20

12

1300x80x25

13

1300x100x25

14

 1600x100x30

15

2030x80x25mm

16

3160x80x25mm

17

3200x85x25mm

shearing-machine-blade-installation-position

Blade Metal Materials International Grade Corresponding Table

China (GB)

USA(ASTM)

Japan (JIS)

Germany (DIN)

Germany (W-Nr)

France (NF)

Russia (ROCT)

U.K (BS)

9CrSi

-

-

90CrSi5

1.2108

-

9XC

-

6CrW2Si

-

-

60WCrV7

1.255

55WC20

6XB2C

-

Cr12MOV

-

SKD11

X165CrMov12

1.2601

-

X12M

-

Cr12Mo1V1

D2

-

X155Cr12Mo12

1.2379

X160CrMoV12

-

BD

4Cr5MoSiVI

H13

SKD61

X40CrMoV5-1

1.2344

X40CrMoV5

4X5MO1C

BH13

LD

-

-

-

-

-

-

-

W18Cr4V

T1

SKH2

S18-0-1

1.3355

HS18-0-1

P18

BT1

W6Mo5Cr4V2

M2

SKH9

S6-5-2

1.3343

-

P6M5

BM2

metal-shear-blades-factory-inventory-01metal-shear-blades-factory-inventory-02metal-shear-blades-factory-inventory-03

Guillotine Shear Blades FAQ

Q1: Best blade material for cutting stainless steel

  • For thin stainless steel sheets: D2 steel is the best option.

  • For thick stainless steel plates: H13 steel is the top pick.

  • D2 steel benefits

    High hardness, good wear resistance and steady size stability.

    Stays sharp longer and avoids edge cracking when cutting thin stainless steel non-stop.

  • H13 steel benefits

    Great toughness, heat stability and shock resistance.

    Handles heavy pressure and strong cutting force for thick stainless steel, no bending or breaking of the blade.

Q2: How to get burr-free cutting edges

  • Blades are finely polished for perfect flatness and parallel alignment.

  • Strict size tolerance kept within ±0.01mm, keeping the blade gap always even.

  • Exact cutting makes metal edges straight, clean and no burrs, even on thin sheet metal.

Q3: Number of usable cutting edges

  • Most guillotine shear blades have 4 usable cutting edges.

  • When one edge wears down, just turn the blade to use a new sharp edge.

  • 4-edge design makes the service life 4 times longer than single-edge blades, saving your cost.

Q4: Custom blades for old or non-standard machines

  • Yes, we offer full custom blade solutions.

  • We can make one-piece blades up to 6000mm by your drawings or real blade samples.

  • We also supply replacement blades for popular machine brands: Amada, LVD, Accurpress and others.

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Phone:
86-15852949220
Email:
mt@alasmachinery.com
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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