Industrial Circular Paper Cutting Blades & Slitter Knives – Bulk Wholesale Supply
Factory Direct Price | Burr-Free Clean Cuts | Zero Cutting Dust | High-Speed Operational Stability
Who We Serve
We cater exclusively to global B2B buyers:
International packaging distributors
Global paper mill procurement directors
Commercial converting line equipment managers
Stable, cost-saving cutting tool supply directly decides your production profit. Middleman markup, delayed delivery and defective blades will raise downtime costs and squeeze profit margins constantly.
NANJING ALAS INTERNATIONAL CO., LTD is a professional direct factory manufacturer for heavy-duty circular paper cutters and precision slitter knives. Our blades solve mainstream high-speed line pain points: paper tearing, floating dust, web breaks and uneven cutting.
Core Advantage: Zero Middleman, Factory Direct Pricing
Full in-house one-stop production for full quality & cost control:
Premium alloy steel sourcing → CNC precision grinding → Vacuum heat treatment → Mirror surface fine lapping
No third-party traders, no extra markup. Global buyers cut annual blade procurement cost by up to 40%, with unchanged cutting precision and service lifespan.
Two Grade Blade Materials | Full Paper Cutting Matching
Customized for light, medium and heavy paper cutting scenarios; anti-chipping, wear-resistant, less blade replacement.
Cr12 Alloy Tool Steel — Economical Daily Choice
High-carbon & high-chromium alloy for conventional medium-load cutting
Hardness: HRC 58–62
Service Life: 3–5 times longer than ordinary carbon steel blades
Cutting Precision: ±0.01–0.02 mm
Best Application: Medium/thick paper, kraft paper, cardboard, coated/laminated abrasive paper, medium-speed production lines
HSS High Speed Steel (M2 / SKH51) — Premium High-Speed Choice
Tungsten-molybdenum alloy blade for high-friction, high-standard cutting work
Hardness: HRC 60–68 (higher hardness than Cr12)
Heat Resistance: Stable under 500°C high-speed friction heat
Running Speed: Adaptable to 300–800 m/min ultra-high-speed lines
Best Application: Thin tissue paper, release paper, adhesive labels, premium printed paper, rigid thick cardboard
Material Quick Comparison Chart
| Performance | Cr12 Alloy Steel | HSS M2/SKH51 Steel |
| Hardness | HRC 58–62 | HRC 60–68 |
| Impact Toughness | Good for low-impact cutting | Excellent anti-chipping performance |
| Heat Resistance | Moderate | Outstanding |
| Cutting Edge | Standard sharpness | Superior sharpness, dust-free clean cut |
| Unit Cost | Cost-effective | Premium grade |
Precision Blade Design | Zero-Dust Stable Cutting
Strict dimensional tolerance avoids paper jitter, fiber adhesion and web breaks:
Ultra-tight thickness tolerance: ±0.002 mm
Full mirror polished surface: Lower friction, no paper fiber sticking, dust-free cutting at full speed
Optional edge style: Single bevel / double bevel sharp edge
Integrated circular structure: Low vibration, compatible with mainstream converting machines
Wide Application Scenarios
Packaging Slitting: Kraft paper, newsprint, corrugated cardboard, color labels, tissue paper
Post-press Converting: Laminating, bag making, printing slitting, roll rewinding processing
High-speed Production Line: Continuous running 300–800 m/min
Special Material Cutting: Thermal paper, self-adhesive labels, multi-layer composite paper
Bulk Order & Cross-Border Trade Support
Full-chain service to lower your overseas procurement risk:
Flexible MOQ: Tiered bulk order, support small batch stock supplement & full container wholesale
Global payment support: Sight L/C, T/T available; installment terms for long-term contracted clients
Export-standard packing: Anti-rust oil coating + corrosion-proof film wrapping + non-fumigation plywood crate, safe sea & air shipment
24h fast technical reply: Offer blade OD/ID/thickness size, machine model or drawings → Get official 3D CAD drawing + itemized quote within 24 hours
Custom OEM Non-Standard Blades
Custom tailor blades matching European, American, Japanese brand converting equipment:
Multi-groove bottom cutter, custom bevel top slitter, special outer diameter circular cutter
Quick Buyer Selection Guide
Pick Cr12, if you have below demands:
Medium-speed line running; cutting cardboard/kraft/coated paper; control long-term blade purchasing budget
Pick HSS M2/SKH51, if you have below demands:
300-800m/min high-speed cutting; process thin/delicate high-value paper; require burr-free, dust-free cutting; need anti-chipping long-edge lifespan
Bring Visible Production Benefits
Less frequent blade replacement
Reduced machine cleaning & maintenance workload
Zero cutting dust & zero web breaks
Stable continuous production output
Your Reliable Long-Term Blade Partner
ALAS focuses on long-term supply cooperation, not one-time sales.
Adequate in-stock standard Cr12 & HSS rotary knives. Standard order ship out within 10–15 working days, avoid factory shutdown caused by blade stock shortage.
Contact our export team now → Get latest product catalog + free professional cutting solution consultation!
