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Industrial Metal Slitting & Shear Blade Manufacturer

Slitter Knives, Shear Blades & OEM Wear Parts

Sureay Machinery manufactures through-hardened circular slitter knives, guillotine shear blades, and precision punch-and-die sets engineered for continuous-run metal coil processing. We select alloys precisely—from through-hardened SKH-51 to submicron-grain Tungsten Carbide—matched to your specific strip material, thickness, and line speed.

Every knife profile is reverse-engineered from OEM drawings or customer samples, then precision-ground on our 5-axis CNC equipment and verified on a calibrated CMM. The result: drop-in slitter and shear tooling delivering burr-free edge quality from the first coil and maintained throughout the full production run.

[ View Tooling Matrix ]

[ The Industry Challenge ]

The Cost of the Micro-Chip.

High-tensile steel and stainless coils demand extreme edge retention. Standard slitter knives develop micro-chips within hours at high line speed, producing burrs that contaminate downstream components, trigger scrap, and force costly unplanned line stops.

[ Sureay Engineered Solution ]

Zero Burr. Extended Runs.

Our through-hardened SKH-51 and Tungsten Carbide circular knives maintain zero-burr performance across extended production runs, achieving precise slit widths on demanding materials and delivering (+45% Tool Life).

[ Verified Production Specs ]

Side Run-Out
±0.005mmCMM Run-Out Verified
Material Grade
SKH-51
TC Grade
OEM Grade Selection
Core Hardness
62–66HRCThrough-Hardened
Surface Finish
Ra ≤ 0.4μmGround & Lapped

Application Engineering

Materials We Process.

Cold-Rolled Steel Coil
REF ID: 01

Cold-Rolled Steel Coil

AbrasionHIGH
GradeSKH-51
Stainless Steel Strip
REF ID: 02

Stainless Steel Strip

AbrasionEXTREME
GradeTungsten Carbide
Aluminum Sheet Stock
REF ID: 03

Aluminum Sheet Stock

AbrasionMODERATE
GradeD2 Steel

OEM Custom Manufacturing

OEM Process From Drawing To Delivery

Get In Touch

A custom blade order moves through four clear steps — so you know what to send, what we confirm, and what gets checked before shipment.

01

Send Drawing Or Sample

Send your drawing, used sample, machine model, or key dimensions. We review the application, blade geometry, material being cut, and any known fit or wear issues from your current supplier.

02

Engineering Review

Our engineers confirm steel grade, heat treatment direction, tolerance target, edge profile, and all OEM-fit details. Any open questions are resolved before quotation or production approval is issued.

03

Machining And Hardening

The blade moves into CNC machining, vacuum heat treatment, and precision grinding in a controlled sequence. Each stage is tracked against the approved specification to prevent distortion and geometry drift.

04

Inspection And Shipment

Final dimensions, hardness, and edge condition are verified against specification before dispatch. The order is packed and shipped with the required inspection records, and material certification documents.

Reach Our Team

Get in Touch with Our Engineers

Request a Quote

Our engineering team responds within 24 hours.

Upload CAD / Technical Drawing

.DXF · .DWG · .PDF · .STEP · .STP — click or drag & drop

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