Hydraulic Open Die Forging Press: Complete Machine Guide

A hydraulic open die forging press applies controlled compressive force to heated metal while the workpiece remains partly exposed between relatively simple tools. The billet is repeatedly pressed, rotated and repositioned until it reaches the required section and dimensions.

This guide explains how the equipment works, where it is used and what must be assessed before selecting a press. For available configurations, visit the Hydraulic Open Die Forging Press machinery page.

The press uses hydraulic cylinders to move the working slide and transmit force through the upper tool into the heated billet. Unlike impression-die equipment, the tools do not completely enclose the workpiece. This gives the operator or manipulator freedom to draw, upset, flatten, pierce and shape large components progressively.

Open die pressing is particularly valuable when components are too large for conventional closed dies, when production quantities are moderate, or when several product sizes must be made on one machine.

Hydraulic pumps deliver pressurised fluid to the main cylinders. The slide approaches rapidly, changes to a controlled working speed during deformation and returns after the required reduction. The workpiece is then rotated or advanced before the next stroke.

Modern configurations coordinate slide movement, working force, stroke position and manipulator motion. The forging sequence remains dependent on billet temperature, reduction schedule, material behaviour and operator or CNC programme settings.

Wiz Forging Machinery offers reference configurations from WM-HODP-800 to WM-HODP-2500, corresponding to nominal pressures from 8 MN to 25 MN. Reference slide strokes range from 1,000 to 1,600 mm, with model-dependent clearance, table travel, working speed and installed power.

These figures are starting points rather than automatic selections. Final specifications must be confirmed from the component, billet and forging schedule.

Nominal force alone is not enough. Selection must consider projected contact area, material resistance at forging temperature, required reduction per stroke, billet dimensions, final section, tool geometry and process sequence. Adequate daylight and stroke are also needed for safe handling and tooling.

A complete installation may combine billet preparation, furnace or induction heating, temperature measurement, a hydraulic press, forging manipulator, travelling worktable, dies, cooling and inspection. Controls should coordinate material transfer without unnecessarily extending the hot-metal cycle.

Buyers should assess foundation loads, building height, lifting access, electrical capacity, hydraulic-room arrangement, cooling requirements, oil management and maintenance clearances. Installation planning should begin before the equipment is dispatched.

Reference WM-HODP configurations cover 8 MN to 25 MN, although larger or customised specifications can be reviewed for the application.

A manipulator is strongly recommended for heavy, long or high-output workpieces because it supports lifting, rotation, feeding and repeatable positioning.

Yes. Slide control, force control, stroke position, manipulator movement and supporting line equipment can be coordinated to the required automation level.

Please provide the finished-part and forging drawings, material grade, billet dimensions and weight, maximum workpiece dimensions, required forging operations, target output, heating method, handling method, factory voltage, available installation area and foundation information. These details allow the press, tooling, manipulator and auxiliary equipment to be reviewed as one production system.