Bessey All-Steel Screw Clamp GZ125, Clamping Width 1250 mm, Throat Depth 120 mm, Wooden Handle

Large workpieces demand a clamp that won't flex or slip under pressure. The Bessey GZ125 all-steel screw clamp delivers up to 12,000 N of clamping force with a rigid galvanized steel rail and smooth trapezoidal spindle, making it the go-to choice for wide panels, doors, and heavy assemblies in woodworking and metalworking.

Who is it for

Professional carpenters, metal fabricators, and serious DIY enthusiasts who need a durable, high-pressure clamp for large-scale gluing, welding, or assembly tasks. It is especially suited for workshops where vibration resistance and long-term reliability are critical.

Main features

• All-steel construction with galvanized rail for corrosion resistance and long service life.
• Smooth-running trapezoidal thread spindle for high clamping force with minimal effort.
• Swivelling, heat-resistant pressure plate ensures even pressure distribution on uneven surfaces.
• Fixed jaw and pressure plate forged from a single piece for maximum strength and durability.
• Optimized rail profile distributes clamping force evenly, preventing workpiece distortion.
• Wooden handle provides a comfortable, secure grip even during heavy-duty use.

Specifications

• Clamping width: 1250 mm
• Throat depth: 120 mm
• Clamping force: up to 12,000 N (12 kN)
• Rail dimensions: 25 x 12 mm
• Handle material: Wood
• Construction material: All-steel, galvanized
• Spindle type: Trapezoidal thread
• Pressure plate: Swivelling, heat-resistant
• Fixed jaw construction: Forged from a single piece
• Rail profile: Optimized for even force distribution
• Vibration resistance: High
• Heat resistance: High
• Oil & grease resistance: High
• Surface treatment: Galvanized
• Jaw material: Forged steel
• Application: Metalworking, woodworking, general assembly

Tips

For best results, ensure the workpiece is clean and free of debris before clamping. The swivelling pressure plate adapts to uneven surfaces, but using protective pads can prevent marks on delicate materials. Regularly lubricate the spindle thread to maintain smooth operation and extend the clamp's lifespan.