Hydraulic presses for forming and production
Hydraulic presses form and join metal with force rather than by cutting chips. Unlike mechanical designs, full force is on tap across the whole stroke. Stroke and final pressure are freely adjustable, so the machine stays flexible when the part changes and runs reliably on a repeat job. KNUTH stocks industrial hydraulic presses for production and special applications in two frame designs.
Press designs: C-frame and portal presses
Frame design drives access, rigidity and force range:
- C-frame presses: open on three sides. Parts load from the front or the side, awkward pieces included. This layout suits press fitting and jobs with frequent part changes.
- Portal presses in a four-column frame: a closed frame, often called the H-type. It carries higher tonnage, deflects less under load and guides the ram precisely. That is what demanding forming and joining work calls for.
Press force, stroke and throat width of the machines currently available are shown in the product cards above.
How a hydraulic press works
A hydraulic press works on Pascal's principle. A pump builds pressure in a hydraulic fluid, the pressure acts evenly on the ram in the hydraulic cylinder and turns into a high press force. Because system pressure stays constant, force is available anywhere in the stroke, not only near the bottom. A gauge reads out the applied pressure, adjustable stops repeat the same result part after part, and safety devices protect the operator and the tooling. A hydraulic press is slower than a mechanical one, but stronger and easier to meter finely.
Applications and industries
With the right tooling a hydraulic press handles a wide range of work:
- Press fitting bearings, bushings, sleeves and pins in and out
- Coining and punching with dedicated punch and die tooling
- Forming and light deep drawing of sheet and metal parts
- Straightening bent shafts, axles and structural stock
- Joining and assembly with a steady press force across a run
Typical fields are machine building, metalworking, automotive and fleet, plus energy and utility work. Sheet metal in plate format belongs on a press brake, not on a hydraulic press.
Control and automation
KNUTH hydraulic presses run automatically and are PLC-controlled, among others with a Siemens control. The operator panel sets the sequence, force and position and recalls them the same way every time. That takes the load off the operator, cuts the cycle time on repeat work and holds the result steady across a run. On one repeating part, the automatic sequence is the decisive edge over a hand-operated press.
Hydraulic presses for special applications
Not every job fits a standard machine. For different forces, sizes, tooling or sequences we work out the right configuration with you. Send us the part, the process and the volume, and our team recommends the design, the size and the equipment. That way we also cover industrial production and special applications a standard press cannot handle.
Sizing a hydraulic press
Three figures let you compare machines. Tonnage is matched to the heaviest job, never to the average one. Stroke sets how far the ram travels and how tall a part can be. Throat width limits what fits between the uprights. Add the frame design, the repeat accuracy you need and the tooling and safety equipment. Machines are quality-tested in Germany against European testing standards before they ship, and the test documentation is available on request.
Press tooling and accessories
Tooling is what makes a hydraulic press earn its floor space. The common items are:
- Press pins and mandrels in stepped diameters for bushings, bearings and pins
- Bolster and support plates to spread force across thin walled parts
- Punch and die sets for repeat coining and punching
- V-blocks that support round stock while it is straightened
Tooling depends on the parts you run. We work through it with you. The full range is under machine accessories.
Why KNUTH
KNUTH is an established supplier of machine tools, not a catalog reseller. Machines are quality-tested in Germany against European testing standards before they ship, and documentation is available on request. Machines and parts for the Americas are held at our facility near Chicago. You get personal advice and matching accessories from one source. Alongside the hydraulic presses, KNUTH also stocks workshop presses for maintenance and assembly; the machinery presses category gives an overview.
Service, parts and availability
Our Americas service team supports the installed base with its own technicians. Startup and operator training are quoted as a separate service item. Replacement parts carry a supply guarantee of ten years. Press pins, V-blocks and further equipment are listed under machine accessories. See maintenance services and repairs and spare parts for the detail. For a quote on your application, use the contact page.
Further Machine Categories at a Glance
Here is an overview of our machine range. Select a category to learn more about individual machines and their technical data.
