6×4000 Hydraulic Swing Beam Shear

1. Definition

A 6×4000 hydraulic swing beam shear is a standalone NC plate shear: the upper blade swings to cut sheet while an NC backgauge positions length. English name: hydraulic swing beam shear 6×4000 with NC (E21S). Quotation model lines often read “6x4000 shear e21s.”

It is a cut-off class machine for sheet metal shops — not a press brake / folder, and not a coil leveling cut-to-length line. Catalog buyers often inquire shear and folder together; answer each machine’s ratings separately.

Industry QC12Y-style 6×4000 swing-beam shears commonly pair ESTUN E21S backgauge control with about 6 mm mild-steel capacity and about 4000 mm cut length. That market class matches this inquiry title; keep component brands and exact strokes on the documented parameter table below.

2. Process and applications

Documented single-machine process:

1. Sheet loading onto the ball worktable
2. NC backgauge positioning
3. Hold-down / clamping
4. Swing-beam shear cut
5. Exit / remove blank

English feature notes on the source include: integrally welded and annealed frame, hydraulic drive, ball-screw backgauge, alignment light, ball worktable, and quick blade-gap adjustment.

Applications. Fixed-length / fixed-width sheet blanking in fabrication shops, including plants that also run roof-panel or cladding lines and need offline plate cutting. Optional front supports and guards follow the contract; folder machines and full CTL lines are not default packages.

3. Reference parameters (documented baseline)

4. Conflicts and open items

• 6×4000 vs table header 10X4100 — Quotation model line writes 6×4000 / E21S while a table header also shows 10X4100 MODEL wording. Externally align commercial model with the capacity table (MS 6 mm / width about 4100 mm) and explain both strings on the proposal — do not invent a third undefined machine.
• Not a forming-line m/min — Stroke/min is the correct productivity language. Do not invent a roll-forming line speed for this shear.
• Folder and CTL ratings — Same commercial folder may sell a 4 m / 6 mm class folder or leveling lines. Those are other machines.

5. Boundaries (related machines)

• Hydraulic press brake / folder — Bending, not swing-beam shearing.
• Coil leveling cut-to-length lines — Continuous coil-to-sheet systems; different envelope and controls.
• In-line hydraulic cutoffs on roll formers — Profile-shaped flying or stop shears on forming lines; not this plate shear.
• Circle / disc shears — Round blanking family; separate encyclopedia titles when present.

6. Buyer FAQ

Is this the same as a 4 m press brake?

No. This page is the swing-beam shear. Folders are answered on their own parameter sheets even when quoted in one package.

Why does one header say 10X4100?

Because the source document carries both a 6×4000 commercial model line and a 10X4100-style table header. Confirm the contract model against the MS 6 mm / ~4100 mm capacity rows.

Can it cut 6 mm stainless?

Documented stainless capacity is about 3 mm. Mild steel about 6 mm. Confirm alloy and strength on the proposal.

Does E21S store cutting programs?

Feature notes describe about 40 programs × 25 steps and intelligent X-axis positioning. Exact software options follow the shipped controller configuration.