Hydraulic Tryout Presses
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HYDRAULIC TRYOUT PRESSES SCHULER Ta Member of the ANDRITZ GROUP

HYDRAULIC TRYOUT PRESSES. TRYOUT AS SUCCESS FACTOR. Modern tryout systems enable die start-ups in production-like conditions. Hydraulic tryout presses reduce costly downtimes. Complex forming processes, new materials and demand are essential components of a sequence that includes for the highest levels of economy and efficiency character- component simulation > manufacture of dies > start-up > ize the stamping plants of today’s automobile- and supplier production. The interplay between press, die, material, and industry. The continuous expansion of the number of lubrication is so...

SUCCESS FACTOR TRYOUT / HYDRAULIC TRYOUT PRESSES YOUR BENEFITS: Flexibility ■ Varying die heights, drawing depths, and drawing forces are possible. Work energy ■ Total press force is available over the entire slide stroke. Drawing speed ■ The drawing force and drawing speed can be varied by means of the hydraulic control. Ergonomic design ■ Optimal access to the die. Press force regulation ■ Press force can be limited for smaller dies. Multicurve-drive ■ Permits simulation of the slide speed and the dynamics of a variety of mechanical and servo-mechanical production presses. Multi-point...

Hydraulic tryout presses in the die shop. Multicurve tryout presses with rotating slide plate and moving bolster. MULTIPLE APPLICATIONS for die construction, quick changeover is crucial. Setting Tryout presses close the gap between die manufacturing up new dies should be fast and easy in order to produce and part production. They simulate the production lines “pass parts” as quickly as possible. Generously dimen- during die manufacturing or just before actual production sioned slide and bolster cushion strokes offer flexibility in the stamping plant – whether as a simple die spotting for...

SUCCESS FACTOR TRYOUT / HYDRAULIC TRYOUT PRESSES Speed Acceleration Speed Acceleration Speed Acceleration Multicurve tryout press for simulating all press types. Simulation of different slide kinematics. DRIVE CONCEPT “SPEED” Schuler has developed a drive concept to increase the To achieve exact simulation of the forming processes of forming speed in tryout operations, which is tailored to mechanical production lines, hydraulic multicurve tryout the specific requirements of the tryout process. When presses simulate various slide motion characteristics. used on prototyping and tryout...

TECHNICAL EQUIPMENT. Return stroke Pick-up position Drawing process Pre-acceleration pressure build up   Slide movement    Cushion max. stroke    Cushion min. stroke Hydraulic tryout presses are the key to fast die start-up. Hydraulic bed cushions offer maximum flexibility. During the drawing process the bed cushion force is In order to utilize a tryout press universally, a hydraulic transmitted from the displacement cylinders via pressure drawing unit is required in the bed cushion. The unit should pad and pressure pins to the blank holder of the drawing be able to cover the wide range of...

TECHNICAL EQUIPMENT / HYDRAULIC TRYOUT PRESSES STROKE LIMITATION A mechanical stroke limitation for die spotting is particularly recommended for dies with narrow depth tolerances. In this way, dies without separate fixed stops can be made production-ready. COVERS FOR SLIDE GUIDING To protect the slide guidings from contamination, such as grinding particles, during die rework, the guidings are provided with metallic telescopic covers below the slide. DIE SPOTTING MODE By preselecting the operating mode “die spotting” on the operating mode selection switch, a separate hydraulic circuit is...

TECHNICAL EQUIPMENT. Operator-friendly control. Infinitely variable slide locking. SLIDE PARALLELISM CONTROL INFINITELY VARIABLE SLIDE LOCKING The tilt of the slide – caused by asymmetrical process With this feature the slide can be mechanically locked forces – can be adjusted to the tilting behavior of mechanical over the entire stroke range. In this way, rework can be production presses by means of an active electro-hydraulic performed on the upper die at the ergonomically optimum parallelism control system. height. Locking is performed by a positive locking system using wedge elements...

TECHNICAL EQUIPMENT / HYDRAULIC TRYOUT PRESSES Flexible cover over the press bed. BOLSTER COVER EFFICIENT HYDRAULIC FORMING (EHF) For protection of the bed cushion, a flexible cover is drawn With Efficient Hydraulic Forming, Schuler is significantly over the press bed while the moving bolster is moved out. minimizing the energy requirement of hydraulic presses. The cover is made of slip-resistant material and can be The effect is comprehensive – it happens automatically walked over. without intervention by the operator, it occurs in all processes, it works in any operating mode and in all...

OVERVIEW HYDRAULIC TRYOUT PRESSES Model Basic Basic Basic Speed Basic Speed Parallelism control Optional Yes Optional Yes Other sizes upon request. Center distance of the outer pressure pin rows.

Mechanical equipment Single-action press Computer-calculated press frame in steel welded design, stress-free annealed Press slide in welded design, stress-free annealed 8-way slide guiding via bronze plates on hardened guide rails Maintenance-free solid lubricant Slide parallelism monitoring Hydraulic bed cushion with one pressure axis Bed cushion functions: displacer, pad, ejector Bed cushion-pressure pad with 8-way guiding Support strips for foundation covering at the press bed (covering provided by customer) Walkways for crown and oil tanks One moving bolster to the front Energy supply...

EQUIPMENT / HYDRAULIC TRYOUT PRESSES OPTIONAL EQUIPMENT HYDRAULIC TRYOUT PRESSES Mechanical equipment Hydraulic slide cushion Caps for pin hole bores Multi-point control for the bed cushion (4-/6- or 8-point control) Bed cushion with "pre-acceleration" function Press bed cover for protection of the bed cushion Mechanical die spotting stroke limitation Mechanically adjustable stroke limitation with impact shock dampening Parallelism control of the slide Die clamps at slide Mechanical moving bolster locking Enlarged daylight in the side uprights Press erection with spring vibration dampening...