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1.without power assist,simple operation, 2.prevent slipping,tension control more reliable, 3.the expansion chuck - details see: https://www.machineto.com/high-precision-3-6-10-rotary-chuck-10331768

Features:

1. Mechanical chuck without complex and expensive pipeline with pneumatic hydraulic system, chuck a lifetime without lubrication, low maintenance costs.

2. The larger paper core contact area, not bursting at the seams paper core, cost savings.

3. Fewer wear parts, chuck and long service life.

4. Does not generate dust during operation, no pollution.

5. The cam mechanism to prevent the expansion after key bar "stuck" phenomenon occurs, expanded key can not begin to recover normal, and the impact of the work efficiency.

6. The torque developed based on the actual situation of the domestic core chuck has a large working stroke, easy to wear core features.

7. Applicable to 3 inches 6 inches 10 inches core.