Guillotine Shears with Fixed Cutting Angle

Fixed-rake guillotine: when it is enough

On a fixed-rake guillotine the upper blade always meets the lower one at the same angle — 1.75° on the NARGESA C CNC. The angle is not reset for each thickness, which makes the machine simpler to run. For a shop that mostly cuts steel up to 6 mm in standard sheet sizes, that is enough.

The catalog carries the NARGESA C2006 CNC and C3006 CNC. Both cut mild steel up to 6 mm and stainless up to 4 mm, with a 700 mm back gauge. They differ in cutting length, pace and weight: the C2006 — 2030 mm, 10 strokes per minute, 5.1 t; the C3006 — 3055 mm, 12 strokes, 7.5 t.

C2006 or C3006

The cutting length is matched to the sheet size. The C2006 cuts 1250×2500 and 1500×3000 sheets across, but lengthwise only a 1000×2000 sheet. To slit 2500 and 3000 mm sheets lengthwise into strips, you need the C3006.

When you need a variable rake

• Thickness over 6 mm. TRtech Procut variable-rake shears cut mild steel up to 25 mm and stainless up to 17 mm.
• Narrow strips from thin sheet. The larger the rake, the more a narrow strip twists. At a fixed 1.75° it may twist more noticeably than at a small angle, while a variable rake goes down to 0.3°.
• Long sheets and wide strips. Procut shears cut 3100, 4100 and 6100 mm, with a 1000 mm back gauge.

They are all in the variable-rake guillotine shears section, and how to compare guillotines is covered on the guillotine shears page. After cutting, blanks are usually bent on a press brake.