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Proofline® Sealed Chuck with Open-Center Delivers Precision and Durability

29 April 2021

Wheeling, IL – SMW Autoblok, a world leader in the design and manufacture of rotational chucks, stationary workholding, tooling and custom engineered solutions for the machine tool industry, presents the BP chuck, the only standard fully sealed power chuck on the market with large through hole for maximum lifespan, throughput and durability.

Ideal for lathe applications, BP’s large through hole provides tremendous flexibility for virtually any application where a standard chuck is used including: O.D. and I.D. clamping, bar stock clamping and shaft clamping. Easily convert BP to a collet chuck using collet pads for small diameter parts.

A true workhorse, BP maintains high efficiency even in harsh environments of dry machining, abrasive powders, high pressure or corrosive coolants, and more. Constant grease lubrication provides clamping force consistency and reduced wear, greatly reducing downtime and loss of productivity. With BP, daily maintenance intervals become a thing of the past and only requires maintenance checks every 2,000 hours.

Being fully proofline® sealed from outside contaminants allows BP to maintain a consistent grip force for excellent repeatability at high speed, versus non-sealed chucks which can lose more than 50 percent grip force if not maintained properly. Other advantages include a case-hardened body and internal parts for high resistance and longer life.

Available in 210, 260, and 320 mm, BP series chucks accepts all industry top jaws. The BP-D utilizes master jaws with inch serration while the BP-M operates with metric serration (suitable for Japanese jaws). The American standard, tongue and groove master jaws, are available on the BP-C.

For more information about our BP series, please download the brochure: https://bit.ly/3eHBLDk