Quick-Release Clamps: Type, Opening and Force | Saniso

A quick-release clamp holds workpieces with a lever, ratchet or one-hand trigger instead of turning a screw spindle all the way. You set the opening quickly, clamp, and release again when the hold is done.

At Saniso the STALCO and STALCO PERFECT lines under quick trigger clamps and quick-release lever clamps cover nineteen models in four families: woodworking, lever, automatic quick-release and automatic quick-clamp. Openings run from about 150 mm to 900 mm; where force is stated on the title you find 60 kg, 135 kg or 150 kg. Saniso B.V. in Zwaag sells the STALCO / STALCO PERFECT brand as a wholesaler and webshop.

Prices below are a snapshot (2026-09-23 CEST, incl. and excl. 21% VAT). Always check the live product page.

What is a quick-release clamp?

It is a clamp with fast operation: a lever with a release latch, a precision ratchet lever, or a one-hand trigger / release button. The movable jaw slides on a guide so you match the span of the workpiece, then clamp. This guide covers the nineteen STALCO / STALCO PERFECT article codes below — not carpenter’s / bar screw clamps and not spring clamps.

Why use quick-release clamps for woodworking and glue-ups?

You use quick-release clamps for woodworking and glue-ups when you need to position, clamp and release more often than a screw spindle makes comfortable — several clamps on one glue-up, temporary holds while you mark or assemble, or one-hand work while the other hand steadies the part. Lever and automatic models on Saniso also reverse the jaws for spreading where the product page says so. The longest opening in this guide is 900 mm on the automatic quick-clamp line (S-76540), with 135 kg stated clamping force; the highest stated force among these nineteen is 150 kg on the lever line.

Who typically uses these clamps?

Carpenters, DIY woodworkers and professionals who clamp wooden elements in the workshop — matching how the product pages describe the lines: woodworking and metalworking / construction DIY for the woodworking family; professional woodworking for the lever line; carpentry for automatic quick-release; professionals for the automatic quick-clamp line.

Woodworking quick-release clamps (120 × 200–600 mm)

The STALCO PERFECT woodworking line uses a lever with a release latch / ratchet on a one-piece steel guide. Product pages describe force that builds quickly, similar to screw-type clamps, but no kg figure appears in the titles — so this guide does not invent one. The title size is 120 × … mm; the second figure is the guide length (200 / 300 / 500 / 600 mm).

• Compact (200 mm guide): small workshop holds and short wooden elements — S-76120, 120 × 200 mm.
• Mid (300 / 500 mm): cabinet parts or wider panel edges — S-76130 and S-76150.
• Long (600 mm): longer glue edges or frames — S-76160, 120 × 600 mm.

Application on the pages: clamping wooden elements; primarily carpentry and metalworking, also construction and DIY.

Lever quick-release clamps (250–800 mm, 150 kg)

STALCO PERFECT lever clamps are built for professional woodworking: depth 100 mm, stated clamping force 150 kg, precision ratchet, galvanized steel guide, and reversible jaws (clamping and spreading). Titles also show a fixed 100X250MM line label; the width figure in the same title is the opening that matters (250–800 mm).

• Compact (250 / 300 mm): narrow frames or small panel glue-ups — S-76560, 250 mm / 150 kg and S-76562.
• Mid (400 / 600 mm): cabinet sides or mid-span frames — S-76564 and S-76566.
• Long (800 mm): wide panel or frame holds — S-76568, 800 mm / 150 kg.

These five live under the lever category leaf (not under quick trigger clamps).

Automatic quick-release clamps (150–600 mm, 60 kg)

The STALCO automatic quick-release line is for one-handed operation with an ergonomic release trigger / button. Depth is 60 mm; stated force is 60 kg; jaws are reversible for clamping and spreading. Intended for carpentry work. Titles repeat a 60×150 mm label; choose by the width (150 / 300 / 450 / 600 mm).

• Compact (150 mm / 6"): small carpentry holds — S-76592.
• Mid (300 / 450 mm): typical panel or frame edges — S-76594, 300 mm / 60 kg and S-76596.
• Long (600 mm / 24"): wider one-hand holds — S-76598.

Automatic quick-clamps (150–900 mm, 135 kg)

The STALCO PERFECT automatic quick-clamp line shares one-hand use, an ergonomic release button and reversible jaws, with depth 80 mm, stated force 135 kg, and openings up to 900 mm. Product pages frame a reinforced construction intended for professionals. These models sit on the same quick trigger clamps category as the woodworking and automatic quick-release lines.

• Compact (150 / 300 mm): short one-hand holds — S-76530 and S-76532.
• Mid (450 / 600 mm): everyday carpentry spans — S-76534 and S-76536.
• Long (750 / 900 mm): wide panels — up to S-76540, 900 mm / 135 kg.

How to choose: type, opening and force

Within each automatic or lever family, pick opening / width first at the fixed depth and force for that line. For woodworking, pick the guide length that covers your span.

Overview of the nineteen STALCO quick-release clamps

Browse woodworking and automatic models under quick trigger clamps, and the five lever models under quick-release lever clamps.

Frequently asked questions

When do you need a quick-release clamp instead of a carpenter’s clamp or spring clamp?

Pick a quick-release clamp when you want fast lever or one-hand set-up and release on mid-size spans (roughly 150–900 mm in this guide) at the force bands above. A carpenter’s clamp (long bar and screw) suits very wide glue-ups and higher adjustable force — see our carpenter’s clamps guide. A spring clamp is for light, short temporary holds — see our spring clamps guide.

What is the difference between a lever clamp and an automatic quick-clamp?

A lever clamp here uses a precision ratchet lever, 100 mm depth and 150 kg force (widths 250–800 mm). An automatic quick-clamp is one-handed with a release button, 80 mm depth and 135 kg force (widths 150–900 mm). Both STALCO PERFECT lines offer reversible jaws for clamping and spreading.

How do you choose opening width for a glue-up?

Measure the widest part you need to close, then choose a clamp whose title width (or woodworking guide length) is at least that wide. On lever and automatic titles, ignore the fixed line label (100X250MM, 60×150, 80X150MM) if the width figure next to it is different.

Which clamping force is enough for woodworking joints?

Use the kg figure on the product title where it is given: 60 kg (automatic quick-release), 135 kg (automatic quick-clamp) or 150 kg (lever). The woodworking quick-release line does not state a kg force in the title; pages describe lever force similar to screw-type clamps without a number.

Are woodworking quick-release clamps the same as bar clamps?

No. Woodworking quick-release clamps in this guide use a lever and release latch on a steel guide (120 × 200–600 mm titles). Bar-style carpenter’s clamps use a long bar and screw spindle with much higher stated forces in Saniso’s carpenter’s clamp range — a different product family.

Contact: Saniso B.V., De Corantijn 95, 1689 AN Zwaag · +31 85 488 5920 · Contact.