Karmaksan Machine 40 Ton Eccentric Press Manufacturing and Workshop Solutions

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Since 1988

40 Ton Eccentric Press Manufacturing: The Agile Power of Workshops

April 22, 2026 Author: Karmaksan Machine

The first "serious power" that businesses add to their production line in the metalworking world is usually 40 ton eccentric press machines. Whether you are a small contract workshop or managing the side production line of a giant factory; a 40-ton press is a candidate to be the hardest-working machine in your business with its high speed, compact structure that takes up little space, and its agility that slices thin to medium-thick sheets like cheese.

With our press manufacturing experience we have gained since 1988 as Karmaksan Machine, we completely redesign these 40-ton "agile workhorses" according to the requirements of modern industry. Not only in simple cutting processes, but even in punching, bending, forming, and light deep drawing operations, our machine works in perfect synchronization with your mold.

Why Not Cast Iron? The Long-Lasting Advantage of a Steel Body

Many of the low-cost 40-ton presses sold on the market have an old-technology cast iron body. Cast bodies cannot tolerate the shock waves caused by the continuous and rapid strokes of the press and develop "invisible" flexing and even micro-cracks over time. This flexing shifts the axis of your mold, quickly blunts your cutting blades, and causes your products to have burrs.

The most fundamental element that distinguishes the Karmaksan brand is its steel body press architecture. The C-Type chassis of our machines are joined by robotic gas metal arc welding from ST-52 quality high-strength thick steel plates. After welding, "heat treatment" is applied in giant furnaces to reset all stress and tension in the metal. The result is an unshakeable body that does not flex even a thousandth of a millimeter even at full capacity 40-ton strokes, doubling your mold life.

Pneumatic Clutch: Life-Saving Safety Technology

Presses with a mechanical (rigid) clutch cannot stop "without completing their stroke" in emergencies. Even if the operator takes their foot off the pedal in a moment of danger, that multi-ton ram will inevitably come down. Unfortunately, this situation has caused countless limb losses in the industry.

This risk is zero in our 40-ton models, which we have equipped with the pneumatic press machine technology, an indispensable part of European CE occupational safety norms. The air-clutched clutch and brake system on our machine cuts off the airflow in the very first millisecond when the operator takes their hand off the dual-hand safety button or an object enters the light barrier (safety sensor). Powerful brake pads engage and "lock" the machine in mid-air in a fraction of a second. The safety of you and your staff comes before anything else for us.

Technical Features of Our 40-Ton Presses That Will Put You Ahead

Don't Rush If You Have a Used Press: Revision Opportunity

Do you have old 40-ton presses with mechanical clutches lying in a corner of your workshop, which you cannot operate because they do not get approval from occupational safety inspectors? Buying a brand new machine is not always the only solution. In our professional press repair and revision center at our factory, we breathe new life into your old presses regardless of their brand.

We completely dismantle the mechanical clutch of your old machine, grind the bearings and slides, and integrate a brand new pneumatic clutch system, a CE-approved light curtain, and a PLC safety panel on it. Your old machine returns to your workshop 100% compliant with current occupational health laws and in zero-condition, at well below the cost of a brand new press.

Our 40-ton eccentric presses, which you can switch to unmanned production by connecting a roll feeder in the future thanks to their fully automation-compatible infrastructure, are offered directly to you from our workshop without intermediary companies. You can reach our engineers instantly from the WhatsApp button in the lower right corner of our page to get detailed information about our advantageous and transparent press prices, discuss payment options, and ask your technical questions.

10 Most Frequently Asked Questions (FAQ) About the 40-Ton Eccentric Press

1. Why should I buy a Karmaksan 40-ton steel body press instead of a standard cast iron press for my workshop?
Cast body machines fatigue over time under constant vibration and impact, forming invisible micro-cracks. The 40-ton presses that Karmaksan produces from ST-52 quality high-strength steel plates with robotic welding and heat treatment never flex or crack. This ensures your molds press flawlessly and extends your mold life by up to 30%.
2. What is the maximum sheet thickness I can cut or bend with the 40-ton eccentric press?
Although it depends on the perimeter of the part to be cut, the mold structure, and cutting clearances; our 40-ton presses generally provide flawless, burr-free results in serial cutting and forming operations of cold rolled (DKP), galvanized, or stainless steel sheets between 1 mm and 4 mm without straining the machine.
3. What are the occupational safety advantages of a pneumatic clutch 40-ton press compared to mechanical presses?
Mechanical presses cannot stop without completing their stroke in emergencies, which can lead to serious injuries. In the pneumatic (air clutch) system we produce, when the operator enters the light barrier or presses the emergency stop button, the system cuts the airflow in milliseconds and locks the multi-ton ram in mid-air. This is the foundation of CE occupational safety standards.
4. How are 40-ton press prices determined and do you offer payment facilities?
Our prices are determined transparently based on your requests for a standard C-type body or special table width, PLC screen features, and automation drivers to be added. We offer direct manufacturer prices without intermediary commissions. In addition, we provide investment incentive leasing, commercial loans in installments, and special discounts for cash payments through our contracted banks.
5. Can I connect this machine to an automatic feeder (servo) system in the future and run it fully automatically?
Absolutely! The electrical and PLC infrastructure of our 40-ton presses is designed in full compliance with Industry 4.0 norms. When you buy a coil sheet unwinder or servo feeder in future years, you can integrate it with our machine in seconds via a single communication cable and switch to unmanned mass production.
6. What is Karmaksan's technical service and spare part speed if I experience a malfunction in the machine?
The stoppage of your production line means money loss, we are aware of this. Since we are a 100% domestic manufacturer, all spare parts from pneumatic valves to connecting rods and bearings are in our stocks. In case of a mechanical or electronic failure, we offer an on-site service guarantee on the same day within Istanbul, and within a maximum of 24-48 hours all over Turkey, with fast global dispatch.
7. How do you prevent the machine from overheating when working at high speeds (60-70 strokes per minute)?
Instead of standard roller bearings, we use specially cast phosphor bronze bearings that are extremely heat resistant. In addition, our 'Semi-Automatic Central Lubrication' system pumps pressurized oil to all moving surfaces periodically, independently of the operator, as long as the machine is running. Thus, the risk of overheating or bearing seizure is completely eliminated even at high speeds.
8. How resistant are your machine's electrical panel and motor to voltage fluctuations in my workshop?
The biggest problem in workshops is grid fluctuations. We use world giant, A-quality switchgear materials such as Siemens or Schneider and high-voltage protected motor inverters (drives) in our electrical panels. This ensures that instantaneous spikes or drops in the grid never damage your machine's PLC brain or motor.
9. Do you perform pneumatic system revisions on used (second-hand) 40-ton mechanical presses?
Yes, we recreate your old mechanical presses that are idle or cannot pass the occupational safety audit in our factory. We machine the body, dismantle the mechanical system and install a state-of-the-art pneumatic clutch, dual-hand safety relay, and PLC screen, delivering a CE-compliant machine in zero-condition well below the cost of a new machine.
10. What is the manufacturing and factory delivery time of the 40-ton press when I place an order?
Since our 40-ton machines are on our standard mass production line, which is the most demanded by workshops, our manufacturing and assembly times are very short. Within an average of 15 to 25 working days from order confirmation, we deliver your machine turnkey to your factory, with installation and operator training provided free of charge by us.