Hydraulic powder presses

Starting with Mannesmann Pulvermetallurgie, SMS group has been active in press technology and powder metallurgy since the 1950s. Based on our experience, we know what you want from a powder press: cost-efficient production of complex sintered parts in consistently high quality. The parts created go primarily to the automotive as well as electrical and general mechanical engineering industries.

Hydraulic CNC powder press
For crack-free near-net-shape parts
Main data

Ideal for precise, high-speed operation, our hydraulic CNC powder presses come in a compact, four-column design. Crucial here is our patented controlled punch adapter (CPA). Using up to twelve axes, these machines produce even complex sintered parts very flexibly. You can rely on zero cracks or micro cracks. Our powder presses feature an optimized valve, path, and pressure measuring technology. It enables press forces from 600 kN to 25,000 kN.

Hydraulic CNC powder press
Benefits

Precise, high-quality parts with repetition accuracy of ± 0.01 mm

No cracks or micro cracks in your parts due to hydraulic CNC axes that act independently from top and bottom

Uniform density guaranteed by proportional powder transfer and compacting speeds

Product change in less than 20 minutes

Fully automated process and quality control

Energy savings from innovative hydraulic designs
ECO line – hydraulic CNC powder presses
Up to 60 % energy savings
Main data

The hydraulic CNC press HPE 150 ECO is a new design based on a four-column press. Here, our main focus was on the combination of CNC path-controlled, hydraulic press axes (rams), combined with extreme energy savings of up to 60 % and a reduction in noise to <85 dB.

The key to the savings lies in the newly developed drive concept applying electro-hydrostatic pump technology for ram positioning and force control.

ECO Press CNC Powder Press
Benefits

Reduction of energy consumption by up to 60 % through the use of the new electro-hydrostatic pump technology, while maintaining the significant advantages of the hydraulically controlled axes (punch or ram)

Energy is only required during moving and compaction operation

Up to 80 % less oil volume compared to conventional hydraulics of HPM press type

Low-maintenance and leakage-free hydraulic system

Reduced noise emissions – less than 85 dB

Lower investment costs thanks to a new press design without frame and foundation

Less piping and pipe-laying work required, as the new pump types are connected directly to the press body

Short on-site commissioning time due to pre-commissioning in our workshops and a pre-assembled delivery
CNC hybrid powder presses
High-speed mechanics meet precision hydraulics
Main data

Our hybrid press range features outstanding drive technology including a mechanical-hydraulic drive system for the upper ram. That gives you the advantages of a high-speed mechanical system efficiently combined with a top-precision hydraulic system.

CNC hybrid powder presses
Benefits

Mechanically driven press table with 3 integrated hydraulically working axis

Hydraulic motors with double side-working crank drive

Telescopically tube connections

Exact guiding of the upper press table between the columns

Reversible drive direction for flat parts to allow higher stroke rates

Usage of tool even without fixed step

Variable lower ram system

Designed for CPA use as well as for other conventional systems

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Controlled punch adapter (CPA) technology
Top-quality process engineering

Equipped with up to twelve axes, this tool offers you extreme flexibility for highly complex sintered parts. That’s because each punch level interacts fully automatically and is precisely controlled by the CNC system.

Powder press with controlled punch adapter technology

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Benefits

Extremely high flexibility of all punch movements within the press cycle, as no mechanical fixed stops are required

No mechanical fixed stop in pressing position. Advantage: no mechanical deformation during the compaction process, which means that there is no mechanical springback

No uncontrollable force reactions on the part

Utilization of servo-hydraulic drive or hydrostatic pump technology for getting higher press forces by very high positioning accuracy

Even density distribution also at complex parts geometry

Reduction of set-up time by pre-calculation of the punch movements of the press cycle
Automatic parts calculation

An automated part calculation system is also implemented in the HMI, which gives the operator a first setup position. These ram positions can be simulated and checked on the screen before uploading to the press. Based on the calculated positions and the speeds needed, a theoretically pre-calculated energy consumption per part will be shown.

Powder press HMI