HPR Hydraulic Straightening Press
The HPR hydraulic straightening press from EBR METAL is a motorised press with a welded steel frame. The ram stops at any position under dual-speed joystick control. A matched pair of V-blocks is supplied as standard.
Three series cover 30 to 200 tonnes: HPR with working widths of 775 to 1,070 mm, the wide HPR-W with 1,570 mm, and the heavier HPR-K series with rack-and-pinion cylinder movement and 1,570 or 1,900 mm width. Other sizes and configurations are built to order.
• Press force 30–200 t • Working width 775–1,900 mm • Stroke 200–300 mm • Stop at any position
The HPR hydraulic straightening press from EBR METAL is a motorised press with a welded steel frame. The ram stops at any position under dual-speed joystick control. A matched pair of V-blocks is supplied as standard.
Three series cover 30 to 200 tonnes: HPR with working widths of 775 to 1,070 mm, the wide HPR-W with 1,570 mm, and the heavier HPR-K series with rack-and-pinion cylinder movement and 1,570 or 1,900 mm width. Other sizes and configurations are built to order.
- Press force 30–200 t
- Working width 775–1,900 mm
- Stroke 200–300 mm
- Stop at any position
HPR Design
The workpiece rests on the V-blocks while the operator brings the ram down with the joystick, stopping it at any point of the stroke so that force is applied in small, controlled steps. A relief valve guards against overload. The manometer shows the working pressure.
The bottom tables are height-adjustable. On the heavier HPR-K, the cylinder travels along the workpiece on a pinion and rack, and HPR and HPR-W can be fitted with a moving cylinder on ball bearings as an option. A table raising and lowering attachment is fitted as standard.
HPR Product Gallery
HPR General Features
- Welded steel frame with certified welding
- Three series: HPR, wide HPR-W and the heavier HPR-K with rack-and-pinion cylinder movement
- Stop at any ram position
- Italian hydraulic components (Duplomatic)
- Available in a CE-conform configuration for CE markets
- Built to the customer’s requirements, with other sizes on request
HPR Standard Equipment
- Dual-speed joystick control
- Manometer
- Relief valve against overload
- Height-adjustable bottom tables
- Table raising and lowering attachment
- A matched pair of V-blocks
- Moving cylinder on pinion and rack (HPR-K)
HPR Optional Equipment
- Hand pump (not on 200 t)
- Foot pedal control
- Limit switch with foot pedal control
- Moving cylinder on ball bearings (HPR and HPR-W)
- Light barrier (light curtain)
HPR Technical Specifications
| Model | Press force (t) | Max. working pressure (bar) | Stroke (mm) | Piston / rod diameter (mm) | Advance speed (mm/s) | Working speed (mm/s) | Return speed (mm/s) | Motor power (kW) | Working area (depth × width) (mm) | Width (mm) | Length (mm) | Height (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HPR 30 | 30 | 244 | 200 | 125x80 | 7.5 | 5 | 10 | 3 | 190x775 | 700 | 1500 | 2015 | 400 |
| HPR 60 | 60 | 236 | 250 | 180x120 | 8 | 4 | 10 | 4 | 260x1040 | 700 | 1745 | 2100 | 800 |
| HPR 80 | 80 | 255 | 250 | 200x120 | 8 | 5 | 10 | 5.5 | 260x1040 | 750 | 1810 | 2100 | 835 |
| HPR 100 | 100 | 263 | 300 | 220x160 | 8 | 5 | 10 | 5.5 | 250x1070 | 1000 | 2110 | 2290 | 1400 |
| HPR 150 | 150 | 244 | 300 | 280x200 | 9 | 5 | 10 | 11 | 290x1070 | 1000 | 2110 | 2340 | 1900 |
| HPR 200 | 200 | 283 | 300 | 300x210 | – | 6.5 | 20 | 15 | 440x1070 | 1660 | 1750 | 2860 | 4050 |
| HPR-W 100 | 100 | 263 | 300 | 220x160 | 8 | 5 | 10 | 5.5 | 250x1570 | 1000 | 2630 | 2290 | 1580 |
| HPR-W 150 | 150 | 244 | 300 | 280x200 | 9 | 5 | 10 | 11 | 290x1570 | 1000 | 2630 | 2340 | 2100 |
| HPR-W 200 | 200 | 283 | 300 | 300x210 | – | 6.5 | 20 | 15 | 440x1570 | 1660 | 2250 | 2860 | 4500 |
| HPR-K 100 | 100 | 263 | 300 | 220x160 | 8 | 5 | 10 | 5.5 | 315x1570 | 1000 | 2630 | 2625 | 1755 |
| HPR-K 150 | 150 | 244 | 300 | 280x200 | 9 | 5 | 10 | 11 | 360x1570 | 1000 | 2630 | 2625 | 2350 |
| HPR-K 200 | 200 | 283 | 300 | 300x210 | – | 6.5 | 20 | 15 | 440x1900 | 1665 | 2650 | 2860 | 4800 |
Speeds are typical values. Pump, motor and speeds are matched to the customer's requirements.
Choosing the HPR Hydraulic Straightening Press
The HPR is for straightening shafts, bars and plates on V-blocks, with stop-at-any-position control. General workshop pressing, with a standard hand pump and manual cylinder movement from 30 t, is the job of the HPA. For sheet bending with blades and a prism, see the HPG.
Typical industries: automotive parts, railway and heavy-equipment maintenance, steel construction and shipbuilding.
Request a Quote for the HPR
Send us the workpiece type (shaft, bar or plate), its material, diameter or cross-section and length, and the required press force. Add a drawing or a photo of the part if you have one, and we will propose a model and configuration.
Frequently Asked Questions About HPR
What is the difference between HPR, HPR-W and HPR-K?
Standard HPR models have working widths of 775 to 1,070 mm, and the wide HPR-W has 1,570 mm. HPR-K is the heavier series, with 1,570 or 1,900 mm width and rack-and-pinion cylinder movement.
Can the cylinder move along the workpiece?
Yes. The HPR-K cylinder runs on a pinion and rack as standard, and HPR and HPR-W can have a moving cylinder on ball bearings as an option.
Is a hand pump available?
Yes, as an option on all sizes except 200 t.
How is the HPR protected against overload?
A relief valve limits the pressure, and the manometer shows the working pressure.