ODM Side Lock Tool Adapter Manufacturers & Factories

Side Lock Tool Adapters (DIN 1835-B / Weldon design) provide 100% positive mechanical locking. The clamping screw bears directly down on the flat milled into the cutter shank, eliminating the risk of tool pull-out or rotational slippage under heavy lateral loads. In contrast, ER collet systems rely purely on radial frictional force. In aggressive roughing or interrupted cutting, cutting forces can exceed the frictional holding capacity of a collet, causing the tool to creep axially, ruin the workpiece, and potentially shatter the carbide insert.

Our Qingdao manufacturing facility uses premium forged 20CrMnTi and 40CrMo alloy structural steels. The tool holders undergo controlled atmosphere vacuum carburizing followed by oil quenching and cryogenic deep-freeze stabilization. This metallurgical process produces a surface hardness of 58–62 HRC to a case depth of 0.8–1.2 mm, while preserving an internal core toughness exceeding HRC 32. This prevents spindle taper fretting wear while absorbing the cyclical shock impacts typical of heavy milling.

All tool holder shanks (BT30/BT40/BT50, DIN 69871 SK40/50, CAT40/50, HSK-A63/A100) are finished on high-precision CNC multi-axis internal and external grinding machines in temperature-controlled rooms. We maintain an AT3 taper contact area standard exceeding 85% surface blueing contact. Internal tool receiving bores are precision-honed to H4 or H5 tolerances. Dynamic balancing is performed on digital balancing systems to achieve ISO 1940-1 Grade G2.5 at 20,000 to 25,000 RPM.

Yes. Our engineering division provides complete ODM/OEM services. We reverse-engineer physical samples using coordinate measuring machines (CMM) and optical profile projectors, delivering full production-grade CAD/CAM drawings within 48 hours. Custom adaptations include extended-reach lengths (overhang ratios up to 8xD), dual-screw arrangements for metric and imperial shank combinations, custom coolant-ring designs, and specialized dual-contact flange interfaces (Big Plus compatible).

DIN 1835 Form B (standard Weldon) features one or two clamping screws bearing on a single flat surface parallel to the tool axis, primarily designed for cylindrical end mills with flats (DIN 6535-HB). Form E (Whistle Notch) features a clamping screw with an angled wedge face (usually 2 degrees) that locks against an inclined flat on the cutter shank. Whistle Notch provides both axial adjustment and a positive clamp that pulls the cutter rearward against a solid internal stop screw.

Every tool adapter undergoes ultrasonic solvent cleaning, followed by application of an industrial-grade, barium-free anti-corrosion oil film providing up to 24 months of vapor barrier protection. Adapters are hermetically sealed inside thick VCI (Vapor Corrosion Inhibitor) plastic sleeves, placed in heavy-duty molded individual ABS protective cases, and packed into reinforced export-grade corrugated cartons strapped to fumigated hardwood or plastic euro-pallets.

For standard machine tapers (BT40, BT50, SK40, HSK63A) with custom bore sizes or OEM branding logos, our MOQ starts at 20 pieces per specification. Prototype samples are completed in 10–15 business days. Full batch orders ranging from 100 to 2,000 pieces typically complete production within 30 to 45 calendar days, supported by automated CNC cells and in-house heat treatment lines.

We provide full white-label and private-label manufacturing. High-precision fiber laser marking systems engrave your company branding, part numbering, batch tracing serials, dimensional specifications, and QR/DataMatrix codes directly onto the tool adapter body. Custom packaging, barcode labelling, and custom multi-lingual user manuals are coordinated to integrate directly into your warehouse logistics stream.