ISO 9001:2015 CERTIFIED FACILITY
ISO 9001:2015 CERTIFIED FACILITY
Kolkata Knives America
Kolkata Knives America delivers industrial blade manufacturing capabilities for knives, machine blades, cutter components, wear parts and custom OEM components through CNC machining, heat treatment, precision grinding, finishing and inspection. Each part is manufactured to its drawing, material, application and performance requirements.
5000 mm x 825 mm
350 mm x 1000 mm
4200 mm x 300 mm
Industrial knife manufacturing normally requires a sequence of controlled operations rather than one manufacturing step. The exact route depends on the steel grade, blade geometry, hardness requirement, tolerances, cutting-edge design and application.
Raw material, plate, bar, forging or other starting stock is prepared with appropriate machining and grinding allowance.
Reference surfaces, profiles, mounting holes, slots, bores, counterbores, threads and other component features are produced as required.
The selected thermal route establishes the required material condition and hardness according to the steel grade and component specification.
Distortion introduced during thermal processing or material preparation can be corrected where required before final grinding.
Thickness, flatness, parallelism, working faces, bevels and cutting geometry are finished according to the blade design.
Critical dimensions, hardness, geometry and surface condition are checked before final preparation and shipment.
Not every component follows every step. The manufacturing route is established from the drawing and finished requirements.
Kolkata Knives America supports CNC machining for industrial knives, machine blades, cutter components, wear parts, shafts and custom OEM components. Machining establishes the controlled geometry required for accurate mounting, assembly and subsequent manufacturing operations.
Depending on the component, machining can produce datum surfaces, profiles, holes, counterbores, countersinks, slots, pockets, keyways, bores, threads, shoulders and other functional features.
Milling • Drilling • Boring • Reaming • Tapping • Slotting • Pocketing • Turning
Vertical machining centers support face and profile milling, drilling, boring, reaming, tapping, slot machining and pocket machining for industrial knife bodies and engineered components.
Long knives, cutter bars and extended components can require accurately positioned machining features distributed across several meters of part length with controlled alignment and dimensional accuracy.
Horizontal machining supports components where related faces, bores, pockets and mounting features must be produced from multiple orientations while maintaining their relationship to common datums.
CNC turning produces controlled rotational geometry including outside and inside diameters, faces, shoulders, grooves, threads and bores.
Not every manufacturing operation requires a CNC machining center. Conventional equipment supports raw-material preparation, straightforward features, datum generation, setup work and secondary machining before or after CNC operations.
Precision grinding is a critical operation in industrial blade manufacturing, establishing the flatness, thickness, parallelism and cutting geometry required for accurate blade performance.
Kolkata Knives America supports horizontal surface grinding, vertical surface grinding, long-component grinding, angle grinding and supporting tool & cutter grinding for industrial knives, machine blades, wear components and precision-engineered parts.
Surface Grinding • Angle Grinding • Bevel Grinding • Flatness Control • Cutting Edge Finishing
Horizontal surface grinding is used to achieve controlled flat surfaces, parallelism and dimensional accuracy on blade bodies, plates and long components.
Vertical grinding supports side faces, datum surfaces, block components and precision working faces where controlled geometry and accurate surface finishing are required.
Many industrial knives require controlled bevels and cutting angles rather than only flat ground surfaces.
Angle grinding capability supports long cutting edges and blade geometries requiring consistent bevel preparation.
Tool grinders and cutter-grinding equipment support smaller cutting tools, profile cutters, inserts and selected regrinding or finishing requirements.
Precision grinding requirements depend on blade width, thickness, bevel geometry, fixturing and finished tolerances.
The grinding process is selected according to the drawing requirements, cutting application and final dimensional specification.
Heat treatment plays a critical role in industrial knife manufacturing by controlling hardness, wear resistance and toughness according to the material grade and application requirement.
Kolkata Knives America supports pre-heating, hardening, quenching and tempering processes for tool steels and industrial cutting components, supported by hardness testing and metallurgical verification.
Pre-Heating • Hardening • Quenching • Tempering • Hardness Verification
Heat-treatment routes are selected according to material grade, component geometry and required mechanical properties.
Thermal processing requires controlled temperature management and recording to achieve consistent material properties.
Heat-treated components are checked using hardness testing equipment to confirm the required material condition.
Metallurgical support equipment assists with material evaluation and process verification where required.
The selected thermal route, target hardness and acceptance requirements are established according to the component drawing, steel grade and final application.
Long blades and heat-treated components may require controlled correction before final grinding, inspection and assembly.
Kolkata Knives America supports straightening, plate leveling and hydraulic pressing operations for suitable industrial components.
Straightening operations provide controlled correction for blade blanks, long blades, extended components and selected heat-treated parts before final grinding, inspection and finishing operations.
Plate leveling supports controlled correction of suitable plates, flat materials and component surfaces before machining, grinding or final finishing operations.
Hydraulic pressing supports controlled pressing, straightening, forming and selected assembly operations for industrial components requiring dimensional correction or controlled force application.
Straightness, flatness and correction requirements are evaluated according to material condition, thickness, geometry and final dimensional requirements.
Manufacturing precision requires verification at every critical stage. Kolkata Knives America supports dimensional inspection, hardness testing, geometry verification and metallurgical checks for industrial blades and engineered components.
Inspection requirements are established according to component drawings, material specifications, heat-treatment requirements and critical functional features.
After machining, heat treatment and grinding, selected components may require additional finishing operations before shipment or assembly.
Kolkata Knives America supports polishing, tool and cutter grinding, demagnetizing, welding and selected surface-treatment requirements.
From machining and heat treatment through grinding, finishing and inspection, processes are selected according to the final component requirement.
The equipment is not the end product. The capability matters because of the types of knives, cutters and engineered components that can be reviewed for manufacture.
| Product / Component | Relevant Manufacturing Capabilities |
|---|---|
| Shear & Guillotine Blades | Long-component machining, drilling, heat treatment, straightening, surface grinding, angle grinding |
| Granulator Knives | CNC milling, holes/slots, heat treatment, flat grinding, final blade finishing |
| Shredder Cutters & Blocks | Multi-face CNC machining, boring, heat treatment, vertical grinding |
| Paper & Wood Knives | Long blank machining, mounting patterns, heat treatment, long surface/angle grinding |
| Circular / Slitter Components | CNC turning, OD/ID machining, grinding and inspection |
| Ground Flat Stock | Material preparation, straightening/leveling, surface grinding and dimensional inspection |
| Wear Parts & Guide Components | Milling, drilling, block grinding, heat treatment where required |
| Custom OEM Components | Drawing-based CNC machining, turning, heat treatment, finishing and inspection as applicable |
A blade can be reviewed across machining, thermal processing, straightening, grinding and inspection rather than treating each operation as an unrelated purchase.
Long-bed machining and grinding equipment provide manufacturing options for extended-length knives, cutter bars and wear components.
The process route is determined by the actual component geometry, material, hardness, tolerances, quantity and application.
The manufacturing base is focused on industrial knives, cutting components, wear parts and precision-machined products rather than generic machining alone.
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manufacturing solution tailored to your requirements.
Kolkata Knives America supports a wide range of industrial sectors with precision-engineered blades, wear parts, and custom-manufactured components. Our solutions are designed to meet the demanding requirements of processing, recycling, cutting, and material handling applications.
Primary and secondary shredding blades for waste.
Heavy-duty knives for scrap handling and reclamation.
Precision slitter and shear blades for metal production.
Granulator and pelletizer blades for polymer recovery.
Slitting and trimming solutions for paper mills.
Chipper knives and cutters for timber operations.
Industrial knives for packaging and converting lines.
Wear-resistant blades for demanding applications.
Manufactured to customer drawings, samples, or specs.
Whether you need a replacement industrial knife, cutter component, wear part or custom machined component, send us the information you have.
Ready to optimize your production? Send us your specifications or technical drawings for a detailed engineering review and quote.
+1-408-868-8867
sales@kolkataknivesamerica.com
PO BOX 23110, Pleasant Hill, CA 94523
Kolkata Knives America supports CNC and conventional machining, precision grinding, heat treatment, straightening, pressing, secondary finishing and inspection for industrial knives, cutter components, wear parts and selected custom OEM components.
Yes, KKA supports the manufacturing of long industrial knives, cutter bars and extended components, subject to component geometry, material requirements, machining approach and workholding considerations. Long-length components are reviewed based on drawing requirements, manufacturing sequence and the required machining, grinding and finishing operations.
Representative applications include shear blades, guillotine knives, granulator knives, shredder cutters, paper knives, wood knives, circular/slitter components, cutter bars and related wear components. Final manufacturability is confirmed from the actual drawing and specification.
Yes. Documented capability includes pre-heating, hardening, quenching and tempering equipment together with hardness-testing and metallurgical support. The specific heat-treatment route depends on the steel grade and required finished properties.
Straightening, plate-leveling and hydraulic pressing capability is available for suitable components. Whether straightening is required depends on blade geometry, material condition and finished straightness requirements.
Inspection capability includes Rockwell and Vickers hardness testing, dimensional measuring equipment, angle and geometry tools, shadow-graph capability and metallurgical-support equipment.
Send the existing-part information, photographs, dimensions, machine make/model or available sample details with your RFQ. The team can determine what additional information is required before manufacturing is confirmed.
Yes. For suitable components, the manufacturing sequence can integrate machining, thermal processing, straightening, precision grinding, finishing and inspection according to the part specification.
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