H-Type Production Press
Custom built H-frame double-column press with press force from 25 ton to 2000 ton.
The hydraulic production press is designed based on our customers’ special needs and specifications and exclusively built from quality materials that guarantee high operational reliability and long service life. The H-type hydraulic press is made with five different optional guiding systems, two optional variable press speed versions and two optional control systems with up to 6 axes.
This high level of design flexibility ensures innovative press solutions and maximum customer satisfaction.
Flexible location of power pack
Freely programmable PLC
Modular Design
Prepared for automation
Stenhøj designed cylinder with extra long guides
Free fall hydraulics:
Unloaded maximum speed: 0-350 mm/s
Return: 0-300 mm/s
Pressing speed at 30% load: 0-50 mm/s
100% load: 0-20 mm/s
Regenerative hydraulics:
Unloaded maximum speed: 0-140 mm/s
Return: 0-140 mm/s
Pressing speed at 30% load: 0-50 mm/s
100% load: 0-20 mm/s
The user friendly control system is built to meet latest European safety regulations.
In accordance with the safety regulations, the hydraulic system has dual monitored safety valves, monitored by a safety PLC.
The various press functions of the press are set directly on the control cabinet and displayed on the HMI touch panel.
Operator Panel 1, 2, 3 axes or more
Based on a Siemens or Allen Bradley PLC and a 9-, 12- or 15-inch touch panel.
The control consists of a freely programmable interface with up to 54 program lines to build a press program.
The user can use the program lines to control the axes of the press and 8 I/O’s, dependent or independent of each other in a desired sequence.
The following features can be selected in each program line directly on the operator panel:
Operation modes, on lockable electric selector switch
Light Guard
Using a light guard during insertion work allows safe operation without having to activate the normal operating push buttons. This works in a single or double break operation
Additional protection function against unauthorised access.
Integration Options
Possibility of signal exchange with external equipment, such as feeder, robot or transfer system.
The hydraulic power pack is located at the rear top of the press and is easily accessible and service friendly.
All our pump systems are designed to fit each press size to achieve low energy consumption and avoid excessive heat in the hydraulic system.
Our power packs are equipped with a hydraulic pump for each cylinder axis. This ensures that the Main axis, Die cushion and Ejector can work independently at the same time.
To reduce unnecessary heat and energy consumption we operate with axial pumps which match the flow to the desired speed and are designed to avoid overload of the motor and clutch system by reducing the flow automatically when the press force increases and approaches max power.
The pumps are submerged directly into the oil tank, which provides low noise.
The valve system on the hydraulic tank is made up of compact block units protected against overload, placed on the hydraulic tank and designed as a hydraulic safety system in compliance with European safety requirements.
Electric motors are minimum IE3 premium efficiency rated.
We design all our cylinders in-house.
Exact guiding and good seal components are important for press cylinders.
Over the years, STENHØJ has developed and standardised our cylinders with long guides, to obtain an accurate and strong piston guide.
For this purpose, we use high quality, expertly processed steel pipes with a cylinder surface which are either roller polished or honed for achieving a smooth and durable surface, together with a grinded and hard chromed piston rod.
The guide bushes are made of our special material that provides a strong and precise guide, which, together with our reliable wear-resistant and tight sealing elements, guarantee the cylinders a long service life.
The well dimensioned bed- and ram plate is equipped with T-slots for clamping and support of the press tool.
We offer customised bed plates and ram plates dimensions with desired holes and T-slots
Ram plate guiding specifications
In addition to the high guiding accuracy of the cylinder and depending on the working task requirements, STENHØJ Hydraulik offers five guiding types for the Ram suitable for the pressing process.
Type 1 and 2: The Ram plate is guided by 2 or 4 columns through guides with self-lubricating bronze bushings from above. In order to ensure a stabilised construction, the columns are integrated into the Ram/slide plate.
Type 3 and 4: The Ram guide consists of four strong columns integrated in the frame leading the ram/slide plate through self-lubricated guides. The choice between a ram plate or a ram in a welded box depends on the tool width and the tool support requirements.
Type 5: The Ram/slide is a Box design and guided by means of eight (8) pieces 90° guide shoes equipped with replaceable PTFE compound inserts for minimum friction and long life. These gibs allow for extraordinarily high loads. Replaceable, hardened and grinded guide-ways are bolted onto the press frame.
Type 3-5 are commonly used when high accuracy and high guiding stability for long strokes and eccentric side load are required.
The Ram/slide Lock is designed for mechanical parking of the Ram/slide during the tool change etc.
The ram lock is connected to the safety PLC system, when the operator needs to park the ram.
By pushing a button, the Ram/slide will automatically return to top position and lock the Ram/slide, and the hydraulic power unit will turn off.
Do you need help or have any questions? Our dedicated team of specialists is ready to assist you
Stenhøj Hydraulik A/S
Sigurd Stenhøj Vej 2
7150 Barrit
Denmark
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DE 
SV_SE 
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