Heckert UPW Series

High-Precision Cold Profile Rolling Excellence

🎯 What is it used for?

Thread Rolling: Producing high-strength bolts, studs, and lead screws.
Spline Rolling: Creating gears and splines on shafts for automotive driveshafts.
Burnishing: Achieving mirror-like surface finishes on cylindrical parts.

🌟 Iconic Manufacturers

In the secondary market, these brands are highly sought after:• Heckert (WMW): Famous for the UPW 12.5, 25, and 63 models.• Bad Düben: The successor to Heckert’s rolling technology.• Izpe: Spanish excellence in hydraulic rolling machines.• Tsugami: Japanese precision for micro-thread rolling.

Technical Overview

The Heckert UPW series is a heavy-duty hydraulic thread rolling machine designed for cold-forming external profiles. Unlike cutting, rolling redistributes the metal fibers, resulting in superior fatigue strength and surface finish. The UPW’s rigid 2-roll design allows for both “In-feed” rolling (for short threads) and “Thru-feed” rolling (for long bars), making it a versatile powerhouse for fastener manufacturers and automotive Tier-1 suppliers.

Technical Specifications (Typical UPW 25)

Parameter	Technical Details
Rolling Force (Hydraulic)	250 kN (25 Tons)
Workpiece Diameter Range	10 mm – 100 mm
Maximum Pitch	8 mm
Max. Rolling Length (In-feed)	200 mm
Spindle Speeds	20 – 90 RPM (Variable)
Machine Weight	approx. 2,800 kg

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