Straight Side Presses in This Range
A straight side press closes its frame into a box — two uprights, a crown and a bed — with the load path carried by the two uprights rather than by an open throat. Five crank series in this range are built that way: the D1N single crank (80-260 tons), the M1N single crank (125-800 tons), the D2N two-point (110-800 tons), the T2N two-point (400-1,200 tons) and the S2N four-point eccentric (400-1,600 tons). The servo EM2 and the high-speed GP and GPH series are also straight side constructions, on their own pages.
| Series | Drive | Capacity | Stroke | SPM |
|---|---|---|---|---|
| D1N | Single crank | 80-260 t | 70-250 mm | 20-120 |
| M1N | Single crank | 125-800 t | 80-300 mm | 10-90* |
| D2N | Double crank (two-point) | 110-800 t | 110-350 mm | 15-110 |
| T2N | Double crank (two-point) | 400-1,200 t | 300-450 mm | 15-40 |
| S2N | Eccentric, four-point | 400-1,600 t | 500-700 mm | 12-30* |
Selected per-model specifications for the straight side crank series are reproduced on the H-frame press page; the configuration axes are split out on the single crank, double crank and eccentric press pages. (Source note on the two ranges marked * in the table: the M1N speed range opens at 10 and the S2N range at 12 because the M1N-800's and the S2N-1600's variable SPM cells are printed in the manufacturer's tables as dates, “10月20日” and “12月20日”; both lower bounds are presumed restorations of those values — treat them as presumed, not as resolved specifications, and have them confirmed by the manufacturer when quoting.)
Why the Closed Frame
A gap frame press opens at the front for access, with its throat in the load path. A straight side frame has no throat in the load path — two uprights, a crown and a bed close the frame into a box. The guidance engineering published for these series: six-point full-length box gibs on the two-point presses, eight-side long guide rails on the S2N and T2N, and die space up to 6,000 x 1,800 mm at the top of the S2N range for transfer work.
Choosing Inside the Straight Side Range
- Single crank (D1N, M1N): the M1N page documents drawing, bending, marking, flattening and trimming work.
- Double crank (D2N, T2N): the D2N page documents long, narrow parts and progressive dies on long dies with multiple stations; the T2N page documents large dimension dies run in both directions, progressive or transfer.
- Eccentric four-point (S2N): large dimension dies run in both directions, and progressive or transfer dies, at 400-1,600 tons with 500-700 mm strokes — detailed on the eccentric press page.
- Servo and high-speed straight sides: the EM2 servo series (110-630 t) for programmable slide profiles, and the GP/GPH high-speed series for motor laminations — see servo presses and lamination presses.
The open-frame alternative — three-sided die access for small parts — is the C-frame family. Both frame types are set out against the published tables on the stamping presses page.
Frequently Asked Questions
What is the difference between a straight side and an H-frame press here?
They are the same construction in this catalogue: the manufacturer's straight side series are its H-frame families. This page groups them by frame; the H-frame page carries the selected specification tables.
What is the largest straight side press in the range?
The S2N eccentric press at 400-1,600 tons nominal pressure, with die space up to 6,000 x 1,800 mm — the largest model in the manufacturer's published crank press tables.
Straight side or C-frame for a progressive die?
A short die with a centred load runs well on a C-frame; a long multi-station die points to a straight side frame. Die width and load centre are the enquiry inputs behind that choice.
Are straight side presses available as servo models?
Yes — the EM2 straight side servo series covers 110-630 tons with programmable slide motion profiles, tabled on the servo press page.
Send an Enquiry
Tell us the machine, your material and thickness, and the part you are forming. Tonnage, configuration and price are confirmed in the written quotation.