Spindle Tool Holder

Name: China Spindle Tool Holder Manufacturers & Suppliers - Spindle Tool Holder Factory - Hengli Automation
Brand: Hengli
SKU: 286303339

The spindle tool holder connecting the spindle and the cutting tool. It is forged from 40CrMnTi alloy steel and vacuum heat-treated. It is compatible with ER8-ER32 specifications, with a clamping range of 1-20mm and an accuracy of 0.005mm. The threads are smooth and easy to lock, ensuring stable repeated clamping; some models require no heating for installation. It comes with a collet and nut, suitable for engraving machines and machining centers, and can process metal, wood, acrylic, etc.

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Product Introduction

As the core connector between the motor spindle and cutting tools, the spindle tool holder from Lishui City Hengli Automation Technology Co., LTD can stably clamp various tools. It is compatible with DIY engraving machines, water-cooled spindle motors, high-speed woodworking spindle motors and other equipment, supporting multi-material processing such as metal engraving, PCB processing, acrylic cutting, wood milling, and jade carving. It is a key tool for precision processing and manual creation.

The spindle tool holder is forged from high-quality 40CrMnTi alloy steel, subjected to vacuum heat treatment and quenching hardening, featuring both high rigidity and toughness. Its threads are smooth and easy to lock without slipping, with repeated clamping accuracy up to 0.005mm (high-precision type). The double-headed model can be installed without heating, adapting to various motor shaft specifications from 4mm to 7mm. The full ER8-ER32 series covers a clamping range of 1-20mm, meeting the needs of different tools. Equipped with clear installation guidelines, it is easy for beginners to operate, effectively avoiding component damage, and its durability is far superior to ordinary tool holders.

The spindle tool holder from Lishui City Hengli Automation Technology Co., LTD achieves a rigid connection between the tool and the spindle through taper interference fit: the tail hole of the tool holder fits precisely with the motor spindle, fixed by thread locking or collet tension to smoothly transmit motor power to the tool. Utilizing the elastic deformation characteristics of the ER collet, it evenly wraps the tool shank when locked, ensuring coaxiality and stability during high-speed rotation, thereby guaranteeing processing accuracy.

Multi-scene Adaptability, Flexible and Convenient: The double-headed spindle tool holder can be installed without heating, adapting to various motor shaft specifications such as 4-7mm. Covering the full ER8-ER32 series models with a clamping range of 1-20mm, it easily matches different motors and tools, meeting diverse processing needs.

High-Speed Stable Rotation, Outstanding Precision: Forged from 40CrMnTi alloy steel, processed by vacuum heat treatment and quenching hardening technology, it has excellent dynamic balance performance and no vibration during high-speed operation. The high-precision type has a repeated clamping accuracy of 0.005mm, ensuring a smooth processing surface and extending the service life of the spindle bearing.

Strong, Tough and Durable: Backed by high-quality materials and advanced processes, the tool holder has significantly improved bending resistance and deformation strength. Its threads are smooth and delicate, locking without slipping. Combined with clear guidelines for circlip installation, it reduces operational damage and remains stable during long-term use.

Easy to Install, Beginner-Friendly: Equipped with a detailed installation process (including collet and nut assembly, tool replacement) and key precautions, the steps are clear and easy to understand, requiring no complex operations. Beginners can quickly get started, effectively avoiding component damage.

3.Specifications & Selection

Model Code Analysis:C16 - ER11 - 35L - 5

Blade stem diagram-Tube clamp model-Blade length-Tail aperture

ER Model	Series Example	Clamping Range	Applicable Motor Shaft
ER8	C12-ER8 series	1-5mm	5-30mm (after heating)
ER11	C16-ER11 series	1-7mm	4-7mm (double-headed, no heating)
ER16	C20-ER16, C22-ER16 series	1-10mm	5-30mm (after heating)
ER20	C25-ER20, C27-ER20 series	1-13mm	5-30mm (after heating)
ER25	C32-ER25 series	1-16mm	5-30mm (after heating)
ER32	C40-ER32 series	1-20mm	5-30mm (after heating)

Selection Recommendations

①High-Precision Requirements: Choose the ER high-precision spindle tool holder (e.g., C16-ER11-35L-5) with an accuracy of 0.005mm, suitable for mold processing, precision parts manufacturing and other scenarios.

②Multi-Scene Adaptation: Choose the ER double-headed spindle tool holder (e.g., ER11 double-headed model), which can be installed without heating and adapts to 4-7mm motor shafts, suitable for DIY engraving machines and processing needs with multi-equipment switching.

③Regular Processing Requirements: Choose the ER ordinary spindle tool holder with high cost performance and strong stability, suitable for woodworking, advertising material cutting and other general precision scenarios.

④Tool Specification Matching: Select the corresponding ER model according to the tool shank diameter (e.g., ER8 for 1-5mm tools, ER11 for 1-7mm tools, ER32 for 1-20mm tools) to ensure firm clamping.

The spindle tool holder from Lishui City Hengli Automation Technology Co., LTD can be matched with ER series collets and nuts, adapting to motor spindles with a shaft diameter of 5-30mm. It is fully compatible with DIY engraving machines, circular carving equipment, advertising material processing machines, etc., and is a practical accessory for woodworking, mold, electronic processing and other scenarios.

Motor Spindle: Suitable for DIY engraving machines, capable of metal engraving, PCB engraving, acrylic engraving, jade carving, etc.

Water-Cooled Spindle Motor for Engraving Machines: Can be used for circular carving processing.

High-Speed Woodworking Motor Spindle: Suitable for processing materials such as wood, advertising materials, mold metal, etc.

Lishui City Hengli Automation Technology Co., LTD strictly abides by international quality standards. Our spindle tool holder has passed ISO9001 quality management system certification and CE certification, complying with EU RoHS environmental protection requirements. All materials and processes meet international safety and environmental standards, ensuring product quality and market access.

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