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Industrial bar cutter blade with a top V-notch groove and dual installation bolt holes for heavy-duty rebar shearing machines

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Industrial Bar Cutter Blades & Heavy-Duty Rebar Shearing Knives

Our premium V-Notch Industrial Bar Cutter Blades feature a dual bolt hole design to eliminate vibrations and prevent edge chipping during heavy-duty rebar shearing.

Materials: Premium H13 (High Toughness) | Cr12MoV (Max Wear) | 9CrSi (Cost-Effective).V-Groove Design: Locks and centers steel bars perfectly to eliminate slippage.

Hardness: Vacuum heat-treated to 50-62 HRC

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Bar Cutter Blade – Full Usage and Specification Guide

1. Bar Cutter Blade Material Types & Performance

Blade material is the core determinant of cutting performance, wear resistance and overall service life of rebar cutter knives. As a professional industrial blade manufacturer, ALAS adopts premium alloy steel with standardized chemical compositions to optimize blade hardness, toughness and durability. Reasonable material selection greatly improves cutting efficiency and lowers recurring replacement costs for global construction users.

This guide compares the three most practical and mainstream blade materials adopted by ALAS. All options are fully compatible with GQ40, GQ50 and popular overseas cutter models, including RC-16, RC-20, RC-22, RC-25, RC-32, KMC-25H, KMC-32, DKMC-42, TYC-D35, TYC-HD42A, JCB-32 and SH-32.

1.1 H13 Alloy Steel Bar Cutter Blade

Key Composition

High chromium (Cr), molybdenum (Mo) and vanadium (V) content
Optimized carbon proportion for consistent structural strength and superior impact toughness

Performance Advantages

Chromium & molybdenum boost high-temperature resistance to avoid thermal deformation during non-stop long-hour cutting
Vanadium precipitates hard surface carbides to deliver outstanding abrasion resistance for continuous rebar shearing
Compact internal microstructure effectively prevents edge chipping and cracking under heavy shear load

Recommended Hardness: 48–52 HRC (toughness-focused tempering standard)

Best Application Scenarios

Cutting high-tensile deformed steel rebar
High-frequency, round-the-clock industrial cutting operations
Preferred replacement blade for heavy-duty GQ40 / GQ50 cutters

Market Edge

Among heavy-duty rebar shear blades, H13 alloy blades stand out with balanced toughness and wear resistance. ALAS strictly controls material forging and heat treatment to ensure stable dimensional performance without edge breakage under intensive continuous work, greatly reducing replacement frequency. For global importers, this effectively cuts repeated procurement, freight and customs costs, making H13 blades the ideal choice for bulk orders and long-term cooperative projects with ALAS.

Precision grounded H13 alloy steel bar cutter blades with vacuum heat treatment for high-strength deformed rebar cutting

1.2 Cr12MoV Alloy Steel Bar Cutter Blade

Key Composition

High chromium for elevated surface hardness
Additional molybdenum and vanadium to strengthen structural stability
Elevated carbon content for ultra-high bulk hardness

Performance Advantages

High chromium forms dense carbide phases to realize exceptional hardness and wear resistance for extended service life
Mo & V mitigate material brittleness and improve overall structural stability
Lower ductility vs H13; not fit for high-impact intermittent cutting conditions

Recommended Hardness: 58–62 HRC

Best Application Scenarios

Ideal for cold-drawn hard rebar and steady low-shock production environments, serving as a cost-effective standard aftermarket replacement solution provided by ALAS.

1.3 9CrSi Alloy Steel Bar Cutter Blade

Key Composition

Medium carbon for balanced basic mechanical properties
Core alloy elements: chromium (Cr) + silicon (Si)
Low-alloy formulation reduces raw material cost and facilitates precision machining

Performance Advantages

Silicon stabilizes hardness uniformity and ensures consistent heat-treatment outcomes
Chromium upgrades wear resistance to satisfy routine daily cutting requirements
Excellent machinability and ultra cost-efficiency for large-volume wholesale orders

Recommended Hardness: 50–55 HRC

Best Application Scenarios

Suited for low & medium-strength plain round rebar and widely used in small-to-medium construction projects. As a cost-effective bulk wholesale option, these blades perfectly meet daily light engineering cutting demands with ALAS reliable quality control.

2. Blade Machine Matching Guide

2.1 Blade Shape Classification

Square Blades: Four available cutting edges to maximize usable lifespan, engineered for heavy daily cutting workloads
Rectangular Blades: 1~2 cutting edges, compact lightweight design matching small-tonnage cutting equipment

2.2 Full Machine Model Compatibility

All standard blades supplied by ALAS fit all mainstream domestic and international rebar cutters including GQ40, GQ50, GQ60 and the series below:

RC Series: RC-16, RC-20, RC-22, RC-25, RC-32 (precision-matched blades for optimal shear performance)
KMC & DKMC Series: KMC-25H, KMC-32, DKMC-42 (premium wear-resistant blades for heavy-duty equipment)
TYC Series: TYC-D35, TYC-HD42A (durable blades supporting long-term non-stop operation)
Other mainstream units: JCB-32, SH-32 (fully compatible with ALAS full blade lineup for general site use)

All critical dimensions (thickness, length, width and bolt pitch) strictly comply with universal industrial standards for seamless installation. ALAS also provides customized finished blades for standard domestic cutters and overseas mainstream equipment upon request.

2.3 Material-Based Blade Selection Table

Material Grade	Key Feature	Hardness	Best For	ROI Value
H13 Alloy Steel	Extreme Toughness & Heat Resistance	50–55 HRC	High-strength deformed rebar, heavy-duty industrial continuous cutting	Highest. Prevents chipping; cuts long-term shipping/replacement costs.
Cr12MoV	Ultra-High Hardness & Wear Resistance	55–62 HRC	Cold-rolled rebar, stable and low-impact production environments	Balanced. Lasts 2-3x longer than ordinary carbon steel.
9CrSi	High Cost-Effectiveness	55–60 HRC	Ordinary low/medium-strength rebar, small construction projects	Budget-Friendly. Ideal for daily wholesale and light engineering use.

3. Production Quality Control Standards

To deliver industrial-grade stable and reliable blades, ALAS implements two core precision production processes for all standard and heavy-duty shear blades:

1. Precision full-surface grinding: Creates razor-sharp, burr-free smooth cutting edges for every blade

2. Vacuum heat treatment: Ensures uniform hardness across the entire blade body to avoid early dulling and cracking

Custom-tailored blade services are also available. According to customers’ actual on-site working conditions, ALAS adjusts hardening depth and overall toughness to solve brittle fracture issues during ultra-high-strength rebar cutting for special engineering projects.

4. Factory Direct Supply & Competitive Strength

As a professional blade manufacturer, ALAS provides genuine factory-direct bar cutter blades with no intermediate markup, delivering high-quality and cost-effective cutting solutions for global construction purchasers. All products are fully interchangeable with mainstream rebar cutting machine models including RC-16, RC-20, RC-22, RC-25, RC-32, KMC-25H, KMC-32, DKMC-42, TYC-D35, TYC-HD42A, JCB-32 and SH-32.

4.1 Core Purchasing Benefits

Lower Total Cost: Factory wholesale pricing effectively reduces customers’ overall procurement expenses
Premium Raw Stock: All blades are forged from genuine high-grade H13, Cr12MoV and 9CrSi alloy steel, with vacuum heat treatment calibrated to standard hardness parameters
Rigorous QC Inspection: Every finished blade undergoes comprehensive testing before shipment to meet international industry standards
Flexible OEM & ODM: Custom non-standard blades are available per customer drawings and on-site dimension requirements, including special sizes for RC-32, DKMC-42, TYC-HD42A and other special equipment

90mm by 90mm by 26mm V-groove bar cutter blade with dual bolt holes and 50mm hole spacing specifications

Portable electric hydraulic bar cutting machine RC-25 replacement blade with dimensions of 35mm by 28mm by 15mm

FAQ

Q1: What blade material options are available?

A1: ALAS offers three professional alloy grades to match different working loads and budget demands:

H13: Excellent toughness & thermal stability for continuous heavy cutting of thick high-tensile rebar
Cr12MoV: Superior hardness & wear life; service span 2~3× longer than regular carbon steel blades
9CrSi: Economy-grade option for routine low-to-medium strength rebar cutting

Q2: Why do ALAS blades rarely chip?

A2: Common blade damage is mainly caused by insufficient toughness, improper blade gap and unqualified heat treatment. All ALAS blades adopt vacuum heat treatment to achieve stable uniform hardness and compact internal structure. In particular, H13 blades provide outstanding impact resistance, effectively avoiding edge cracking and chipping during long-term operation.

Q3: Key differences between 9CrSi and Cr12MoV blades?

A3: Under identical working conditions, Cr12MoV blades feature stronger abrasion resistance and support more cutting cycles. 9CrSi blades have lower upfront costs for light-duty and low-budget projects. In terms of long-term comprehensive costs, Cr12MoV blades reduce replacement frequency and equipment downtime, bringing higher overall benefits for users.

Q4: Which blade is best for high-strength rebar cutting?

A4: ALAS H13 blades are the top choice. Featuring excellent impact resistance and thermal stability, the blade edge maintains complete structural integrity under strong shear force, avoiding unexpected machine downtime. It perfectly matches heavy-duty equipment such as RC-32, KMC-32 and DKMC-42.

Q5: Can you produce non-standard blades according to customer drawings?

A5: Yes. ALAS supports full OEM & ODM customization services. Blade dimensions vary for GQ40, GQ50, GQ60, RC-28, RC-16/20/22/25/32, KMC-25H/32, DKMC-42, TYC-D35/HD42A, JCB-32 and SH-32. Equipped with advanced CNC machining equipment, we can produce precision customized blades based on customer drawings, dimensions and material requirements.

Q6: How to extend blade service life?

A6:

1. Rotate usable cutting edges periodically for multi-edge square blades to maximize service life

2. Tighten mounting bolts firmly to avoid abnormal impact damage during operation

3. Set the blade clearance gap to approximately 10% of the rebar diameter to maintain smooth and stable cutting conditions

bar cutter blade specifications and dimensions

NO.	Product Name	Specification Dimensions (length x width x height/thickness) ）	Material	Remarks
1	bar cutter blade size	787817 mm	9crsi，Cr12mov，H13	Customization services are available; we can manufacture according to your drawings, with a minimum order quantity of 2 piece.
2		808017 mm
3		808030 mm
4		838316 mm
5		838326 mm
6		838326 mm
7		909020 mm
8		909026 mm
9		10010020 mm
10		10010030 mm
11		11011020 mm
12		1003075 mm
13		85x65x30 mm
14	Handheld bar cutter 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