Heavy Industry Steel Body
Zero Flex, Maximum Strength
Pneumatic Clutch System
Millisecond Emergency Stop & Safety
Tested Technology
Delivery with Factory Out Quality
In the metal forming and cutting workshops located at the heart of Turkey's industry, 35 ton eccentric press machines are undoubtedly one of the most important machines that ensure the continuous operation of the production line. As Karmaksan Machine, with the experience we have gained since 1988, we meticulously manufacture these special machines, which have a compact design but can produce massive power.
Whether it is sheet metal part cutting for the automotive sub-industry or mold pressing processes for the white goods sector; we offer you the millimetric tolerances your workshop needs with the engineering care we show in eccentric press manufacturing. By closely following the developments in the sector, we integrate advanced technology systems that replace traditional mechanical presses into our machines.
Body Structure and the Importance of Strength
The biggest enemy of a press machine is metal fatigue that occurs over time and body flexing at the moment of impact. Unlike the thin cast iron machines that are frequently encountered in the market and produced to reduce costs, as Karmaksan engineers, we prefer an extra thickened steel body (C-Type Chassis) architecture in our 35-ton series. These steel bodies, whose stress is relieved by passing through special heat treatments, theoretically reduce the vibration and flexing the machine experiences at the moment of pressing to zero.
What does an inflexible chassis mean? It means the error-free operation of the molds worth millions of liras you connect to the machine and a mold life period that is at least 30% longer compared to its equivalents. Moreover, this strong infrastructure provides a perfect ground for the desired size and tonnage modifications in your custom production press orders.
The Peak in Occupational Safety: Pneumatic Air Clutch System
Unfortunately, the mechanical (rigid) clutch systems used mainly in the past could cause serious occupational accidents because they could not be stopped immediately in case of operator errors or mold jams. With the mandatory implementation of CE norms and occupational safety standards in modern industry, we offer the air clutch press (pneumatic clutch/brake) infrastructure as standard equipment on all our workbenches in our production network.
So what is the contribution of this system to your workshop? Pneumatic press systems lock the multi-ton ram in place in milliseconds at the slightest risk warning from dual-hand control buttons or light barrier sensors. Thanks to this mechanism supported by double-coil CE-approved safety valves, the risk of operator-induced occupational accidents in workshops using presses becomes almost impossible.
Key Technical Advantages of Our 35 Ton Presses
- Central Automatic Lubrication: All moving bearings (connecting rod, crankshaft, slides), which are the heart of the system, are lubricated periodically without the need for operator intervention. Thanks to this technology, the risk of bearing seizure is completely eliminated.
- Precise Ram and Stroke Adjustment: With a 75 mm stroke adjustment, it perfectly adapts to cutting, bending, and spinning dies of different volumes in seconds.
- Expanded Work Table: Thanks to the T-slotted table measuring 400x600 mm, you have the advantage of attaching large-sized progressive dies even on a compact 35-ton machine.
- Low Energy Consumption: The optimized 3 HP main motor and the balanced giant flywheel disk keep electricity consumption to a minimum while reaching a speed of 90 strokes per minute.
Cost and Purchasing Process
One of the issues that businesses rightfully pay the most attention to when making a machine investment is the cost. As Karmaksan, we deliver directly from our own production line to our customers without reflecting a showroom, distributor, or intermediary dealer commission. Thanks to this direct communication model, you can own a machine produced with the highest quality and durable components at the most competitive press prices in the market.
In addition, if you have old machines in your factories that have become idle, do not comply with occupational safety laws, or frequently break down, we restore your old workbenches into brand new pneumatic systems with our press repair and revision services offered by our expert team and bring them back to your economy.
Do not slow down your production lines with breakdowns, secure your power with Karmaksan quality. Contact our expert engineer staff immediately to learn about machine technical drawings, our on-site installation supports, and the price quote we will prepare specially for you. You can reach us instantly from the WhatsApp button in the lower right corner of our page and find answers to your questions quickly.
18 Most Frequently Asked Questions (FAQ) About the 35-Ton Eccentric Press
1. Why should I use a Karmaksan 35-ton steel body press in my workshop instead of standard cast iron presses on the market?
Standard cast iron machines fatigue over the years under constant vibration and 35-ton impacts, forming micro-cracks in the body. The machines we manufacture from ST-52 quality high-strength steel plates and stress-relieve in special furnaces never flex even at full capacity. This ensures your molds press with millimeter precision, your blades do not blunt, and your mold life extends by up to 30%.
2. What is the maximum sheet thickness I can cut or bend with the 35-ton eccentric press?
Depending on the diameter of the part to be processed, the mold structure, and cutting clearances, our 35-ton models generally provide burr-free results in serial cutting, forming, and punching operations of DKP, galvanized, aluminum, or stainless sheets between 0.5 mm and 3 mm without straining the machine at all.
3. What is the occupational safety difference between old-style presses with mechanical clutches and your 35-ton press with a pneumatic clutch?
Old-style mechanical presses cannot stop before completing their stroke in an emergency, even if you take your foot off the pedal, leading to limb losses. In Karmaksan's pneumatic (air-clutched) system, when the operator enters the light barrier or presses the emergency stop button, the airflow is cut in a fraction of a second, and the multi-ton ram is instantly locked in mid-air, 100% preventing occupational accidents.
4. How is the pricing determined when I buy a 35-ton press from Karmaksan, and what are the payment facilities?
Our prices are transparently determined according to the standard equipment of the machine, the PLC screen features to be added, or your special table width requests. Since we are a direct manufacturer, you do not pay intermediary commissions. We also offer sales with investment incentive certificates, favorable installment options with contracted banks, and special discount opportunities for cash payments.
5. The electrical voltage in my workshop fluctuates frequently. Will this damage the motor or electronic panel of your machine?
No, it will not. Thanks to the A-quality switchgear materials of world-leading brands such as Siemens and Schneider, and high-voltage protected motor inverters we use in our panels, your machine will not be affected by momentary fluctuations in the grid and will continue to work safely.
6. Is there a risk of the bearings heating up or seizing if the machine runs at high speed (90 strokes per minute) for a long time?
Absolutely not. Instead of roller bearings, we use extra heat-resistant specially cast phosphor bronze bearings. In addition, our standard 'Central Automatic Lubrication Unit' pumps pressurized oil to all moving surfaces periodically while the machine is running, independent of the operator, preventing friction and overheating.
7. What is Karmaksan's spare parts supply and technical service response speed in case of a possible malfunction?
We know very well what a halt in your production costs you. As we are a 100% domestic and direct manufacturer, all our spare parts from connecting rods to pneumatic valves are in stock. In case of a mechanical or electronic failure, we provide on-site service intervention on the same day in Istanbul, and within 24 hours at the latest all over Turkey.
8. How much time does it take to adjust the ram (stroke) and change molds on a 35-ton press?
Thanks to our precise and wide stroke adjustment mechanism of 75 mm, mold changes are very practical. Without struggling with heavy tools, your operators can adapt to cutting, punching, or forming dies of different heights in minutes and quickly resume production.
9. Can I expand my workshop in the future and switch to fully automatic production by installing a roll sheet feeder on the machine?
Yes. The electrical and PLC infrastructure of our 35-ton presses is designed to be fully compatible with Industry 4.0 and external automation. When you buy a servo feeder or straightener in the future, you can integrate it with our machine with just a single cable and easily switch to fully automatic mass production without an operator and without scrap.
10. Do you revise my used (second-hand) mechanical 35-ton presses that cannot pass occupational safety?
Yes, we recreate your idle or risky old mechanical presses in our factory. We dismantle the mechanical clutch, grind the bearings, and integrate a state-of-the-art pneumatic clutch, dual-hand safety relay, and CE-standard light curtain onto it, delivering it to you in zero-condition well below the cost of a new machine.
11. Why do you apply 'Heat Treatment' (Stress Relieving) to the steel bodies you use in your machines?
When steel plates are welded together, an invisible high tension (stress) occurs inside the metal. If this tension is not reset by heat treatment in special furnaces, the 35-ton impacts of the press will cause weld cracks and body distortion months later. We make your machine lifelong durable with heat treatment.
12. How do the delivery, installation, and training processes work when I order a new 35-ton press?
Since 35 tons is on our standard production line, which is the most preferred by workshops, our delivery is very fast. We deliver the machine to your factory within an average of 15-20 days after the order. Installation, commissioning, and training on safe use and periodic maintenance to be given to your operators are provided free of charge by our expert engineers.
13. Will there be a lot of noise and floor vibration in my workshop while the machine is running?
Our extra-thickened C-Type steel body is designed to absorb the shock internally at the moment of impact and transmit minimum vibration to the floor. Furthermore, thanks to the industrial vibro-pads (vibration damping feet) we offer as an option, our machine can operate silently even in workshops on upper floors without disturbing your neighbors.
14. Is the use of a light barrier (photocell) on the machine included in the price or is it optional?
In accordance with occupational health and safety laws, the use of a light curtain that protects the operator's hand and a dual-hand control button is mandatory. Since we at Karmaksan cannot risk the life of any of our employees, these top-level safety equipments are not optional but included in the standard price of the machine.
15. How is the performance of your 35-ton machine in deep drawing processes?
Standard fast cutting presses may struggle with deep drawing. However, thanks to our heavy flywheel disk and high torque generating gearbox (reducer) options, you can successfully perform light-medium deep drawing processes at a capacity of 35 tons without tearing the sheet metal and stalling the machine by optimizing the speed and increasing the power.
16. Can I process soft metals like aluminum, brass, or copper on the 35-ton press?
Absolutely. Thanks to our wide and rigid work table, regardless of the type of sheet metal (DKP, aluminum, brass, copper), when the right mold is used, you can form the material flawlessly in a single stroke without sticking, flexing, or leaving burrs.
17. What is the warranty period for Karmaksan 35-ton presses?
The mechanical body, crankshaft, and gear groups of all brand-new 35-ton presses you purchase from us are under a full 2-year (24 months) Karmaksan warranty against manufacturing and material defects. For the continuity of your business, there is a solid manufacturer's assurance behind your machine.
18. Can I visit your factory and see the machine running before I decide?
Of course! Our doors are wide open to all our industrialists. You can visit our production facility in Istanbul and see our steel welding, heat treatment, and assembly processes with your own eyes. If you wish, you can bring your own mold and do a trial print (die tryout) on our machine to personally test our quality.
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