Hydraulic Plate Shear Capacity for Stainless Steel

The HOCHSTRATE plate-shear family is documented for stainless cutting, making it a candidate for straight stainless blanks and trim. But the selected machine’s stainless capacity is not established by a nominal mild-steel thickness rating. Before buying, get capacity confirmed for the stainless material and cut you actually run.

Why the mild-steel rating is not enough

Shears are commonly rated on mild carbon steel, and equal-thickness stainless may require more force and heavier equipment. Stainless grades also differ: illustrative capacity examples for Type 430 and Type 304 are not interchangeable. Treat any general derating guidance as a reason to verify the application, not as a formula for calculating this machine’s stainless limit.

The manufacturer’s TS family page gives family-level capacity ranges, while the HOCHSTRATE product page does not provide a grade-specific stainless capacity for the configuration being quoted. Ask for written confirmation for the exact shear, stainless grade and condition, thickness, and intended cut length.

What the HOCHSTRATE family supports

The hydraulic plate-shear family is documented for stainless steel and offers extra-hardened blades for stainless use. Blade-gap adjustment, including motorized adjustment with sheet-thickness detection, is also part of the family configuration options. Those facts establish available family features, not the capacity or included stainless blade specification of every quoted machine.

Have the proposal state the blade specification and the blade-gap controls included in the actual configuration. The distinction matters if stainless will be a recurring workload rather than an occasional cut on a shear selected mainly for mild steel.

Match the capacity to the work

Give the supplier the stainless grade, product form, material condition or temper, full thickness range, stock width, and longest intended cut. Identify which grade-and-thickness combinations occur regularly, especially the thickest material across the longest cut. Then ask what capacity is confirmed for those combinations and what material basis underlies the nominal rating.

This application detail turns a general machine rating into a purchase decision. If the proposed capacity is not confirmed for your stainless material and cut dimensions, the mild-steel number alone is not a sound basis for buying.

Blade setup affects the edge

Blade gap—the clearance between the cutting edges—affects the sheared edge. Stainless-steel fabrication guidance notes that clearance should suit the material thickness and the particular equipment; unsuitable clearance can contribute to excessive wear, burr, or distortion. Use setup guidance for the machine and material rather than carrying a generic setting across grades and thicknesses.

Define the edge needed by the next operation. A blank going to forming, welding, finishing, or assembly may have different requirements. Where edge condition is important, assess representative stock for burr, fracture, distortion, and downstream fit before finalizing the application.

Where a hydraulic plate shear fits

A guillotine shear is a candidate for recurring straight cuts in flat stainless stock, including rectangular blanks for later forming, welding, or assembly, and straight trimming within confirmed capacity. It is not the operation for internal holes or complex contours. Fit the proposed machine to the longest and thickest recurring straight cuts, not only to an occasional thinner sample.

I’m Patrick O’Neill, Mac-Tech’s National Product Manager / Regional Sales Executive serving the U.S. national market. I can help assess the proposed HOCHSTRATE shear and quoted blade and adjustment configuration against your stainless material, cut list, and edge requirements. Bring the grade and material condition, thickness range, stock width, longest cut, and a representative drawing or sample so I can help review the application and quote with you.