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C-frame presses derive their name from the C-shaped throat opening. In addition to the familiar open back design, this style of machine has a long history of use for portable hole punching. The press-brake is also a type of gap-frame press.

Presses with force capacities up to 250 tons and larger, gap frame presses are less costly than a straightside press having the same force capacity. In the 35 to 60-ton force range, they cost approximately half that of straightside presses.

The chief limiting factor of this type of machine is that it has more deflection than a straight-side press for a given load. The deflection has both a vertical and angular component.

mammut eccentric presses
mammut eccentric presses
mammut eccentric presses

Gap or C-frame presses have many useful features. These include excellent accessibility from the front and sides for die setting and operation. The machines also cost substantially less than straight-side presses. The open back is available for feeding stock as well as ejection of parts and scrap.
A further advantage of a gap frame press is that the machine is easier to set-up than a straightside press. The diesetter has much greater freedom of access to locate and bolt the die in place. The open back is also accessible for discharging finished parts and scrap as well as feeding stock. Gap-frame presses generally have less height than a straightside press of comparable tonnage. This is a valuable consideration when overhead clearance is limited.

General

• Semi automatic stroke adjustment
• Stress relieving Treatment
• Slide with six guides
• Motor forward/Back control system
• Centralized lubrication
• Photocell guard fence
• Pneumatic equilibrating cylinders
• Motorised carriage adjustment system
• Hydraulic overload protection system
• Pneumatic clutch/Brake combination
• Double selenoid
• Press safety valve
• Gear groups in oil bath
• CE certificate

Optional

• Inverter
• Automatic stroke adjustment
• Quick die change system
• Pneumatic cushion
• 2nd table

PROJECT NUMBER Capacity Table Size Stroke Stroke Adjustment Regulator Speed C Depth Closed Mold Number of Tracks
Ton mm mm mm spm mm mm
C 07 01 00 000 200 1300×800 20-220 Manual 110 45 420 520 6
C 08 01 00 000 170 1300×800 20-180 Manual 100 50 420 520 6
C 08 02 00 000 100 1100×660 20-160 Manual 100 60 350 360 6
C 08 03 00 000 250 1500×900 20-240 Manual 130 40 470 550 6
C 08 04 00 000 150 1100×800 20-180 Manual 100 50 420 410 6
C 10 01 00 000 60 900×570 10-110 Manual 90 60 305 250 6
C 12 06 00 000 200 1500×1000 150 Fixed 130 35 520 600 6
C 12 07 00 000 250 1500×1000 300 Fixed 130 35 520 600 6
C 13 01 00 000 250 1500×1000 250 Fixed 130 40 520 530 8
C 13 04 00 000 200 1300×800 20-180 Automatic 110 45 425 460 8
C 14 06 00 000 200 1300×800 100 Fixed 110 30-50 435 510 6
C 15 01 00 000 160 1400×1000 20-160 Automatic 100 20-60 525 450 8
C 15 02 00 000 250 1500×900 20-240 Manual 130 40 475 570 6
C 16 01 00 000 200 1500×900 300 Manual 130 35 475 500 6
C 16 02 00 000 200 1400×800 20-180 Manual 110 25-45 425 450 6
C 16 03 00 000 160 1300×800 20-160 Manual 100 25-50 425 400 6
C 16 04 00 000 250 1500×900 20-180 Manual 110 40 475 450 6
C 16 05 00 000 200 1300×800 100 Fixed 110 40 455 410 6
C 17 01 00 000 100 1100×700 20-60 Manual 100 20-60 390 300 6

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