LSK57 Series CNC Upward-pull Type Internal Hard Broaching Machine
This product is a mechanical high-speed CNC broaching machine, designed for both soft and hard materials. It is a high-precision, high-efficiency, and highly stable internal gear processing equipment for both preheat treatment and post-heat treatment machining.Capable of broaching post-heat treatment gears with hardness up to HRC 62. Widely applied in industries including new energy, humanoid robotics, planetary gearboxes, and construction machinery.

Technical characters

Main Features
1. Low overturning moment
Model E adopts a four-linear-rail load-bearing structure, where one driving center and one broaching center form a "stable trapezoidal structure"together with Two linear rails on the same plane. This design ensures high symmetry in the force-bearing direction, eliminating most of the"broaching overturning moment"caused by traditional broaching machine structures. Patent No. :ZL 202010920618. 5.
2. Long lifespan and high stability
Large steel balls, large diameter, large lead imported heavy-duty ball screw assemblies; high-precision, high-rigidity imported heavy-duty roller linear guides.
3. 80m/min, precise control, high precision
High-Response Servo Drive+Large-Lead Screw Drive, ensuring flawless broaching precision. Achieves a maximum broaching speed of 80m/min, with seamless switching between soft and hard broaching.
4. Flexible and versatile spatial layout
The equipment can be customized with layout according to customer requirements, flexible and versatile, to achieve various forms of automation requirements.
5. One click intelligent control
Intelligent CNC system+embedded program+highly secondary development, parameter filling and use, zero programming operation, safe and efficient.
6. Convenient and easy to operate
Quick change of tooling, automatic positioning, and practical operation on the machine by the operator with "zero foundation".
Performance
| New Energy | Technical Parameter Name | Unit | LSK5705 | LSK5710E | LSK5715E |
| Numerical Value | |||||
| 1 | RatedTensile Load | kN | 50 | 100 | 150 |
| 2 | Rated Travel | mm | 900/1000 | 1000/1250 | 1250 |
| 3 | Pulling Speed(servo speed regulation) | m/min | 1~80 | 1~80 | 1~80 |
| 4 | Maximum lengthof the puller | mm | 1050/1150 | 1200/1400 | 1400 |
| 5 | Total electrical capacity | kW | about40 | about65 | about70 |
| 6 | Net weight of machine tool | kg | about8000(Stroke 900) | about10500(Stroke 1250) | about11500 |
| 7 | Machine tool workspace(length x width x height) | mm | 3000×2550×3500 (Stroke 900) | 3300×3150×3950(Stroke 1250) | 3300×3150×3950(Stroke 1250) |
Certificate

Our R & D team establish a long - term partnership with National University of Defense Technology , Dalian University of Technology , Hunan University , Central South University , and other renowned institutions . Yuhuan is also research base for Hunan University’s doctoral student,get 5—9 patents per year .
Has got36 related patents
A certificate of international standard products in 2005
Has passedISO9001 : 2000 international quality system certification, has estabished corporate product standards
Packing and Transportation

1. Moisture-proof packaging+Wooden Box.
2. Special packing requirements available.
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