Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 200mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke200 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20
The ACQJ40X200-20 is a double-acting, single-rod JIS compact cylinder configured as a long-stroke, made-to-order variant. It features an external M12x1.25 threaded stop with a lock nut on the extend side, allowing you to fine-tune the usable extend stroke from 180 mm up to the full 200 mm. The retract stroke remains completely unaffected by this adjustment. Because the piston area stays constant, output force equals a standard ACQ of the same bore.
This unit delivers 628.3 N of push force and 527.8 N of pull force at 0.5 MPa, reaching a maximum push of 128 kgf at 1.0 MPa. It incorporates a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. The body includes magnetic-switch grooves, though this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20 Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 200 mm |
| Adjuster thread | M12×1.25 |
| Port size | PT1/8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Rod thread | M8×1.25 (F) / M14×1.5 (B) |
Specifications follow the official AirTAC ACQJ datasheet. The adjustable stop shortens the EXTEND stroke only; the piston area — and therefore the force — is the same as a standard ACQ of this bore. Adjustable window options: 10/20/30/40/50/75/100 mm.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Force equals a standard ACQ of the same bore — the adjuster changes stroke length, not piston area. Actual usable force is lower due to friction; size with a safety margin.
Model Code: Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×200 | Full stroke length in mm. |
| -0 | Adjustable window in mm (extend stroke can be shortened by up to this). |
| S / B | Magnet (S) / male-thread rod (B); omit for none / female thread. |
Thread: PT standard (G / NPT available). Related: ACQ (fixed stroke), ACQD (double rod), TACQ (guided / non-rotating).
Where the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20 Is Used
Machining Center Changeover
Adapts clamp positions on a CNC fixture instantly when switching between part families, using the external stop to dial in the exact 180-200 mm extend reach.
Package Sorting Diverter
Sets precise pusher extension on a packaging line to deflect varying carton sizes without repositioning the cylinder mount.
Press Fit Depth Probing
Establishes trial end positions for an assembly press, allowing operators to test insertion depths on new workpieces before locking the nut.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20 the Right Cylinder?
When sizing this 40 mm bore actuator, dropping to a 32 mm bore yields 402.1 N push, while stepping up to a 50 mm bore provides 981.8 N push at 0.5 MPa. If your extend end position never varies, a fixed-stroke ACQ cylinder is simpler and sufficient. To order, confirm the 40 mm bore, 200 mm full stroke, 20 mm adjustable window, female M8x1.25 rod-end thread, and PT1/8 port. Add the -S suffix if you require a magnet for reed or solid-state sensors.
Quick checklist
- ✓ Need on-machine end-position tuning?
- ✓ Full stroke and adjust window (mm)
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the adjuster nut after setting the stop.
- check The stop limits the EXTEND stroke only.
- check Avoid side load on the short piston rod.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-20 FAQ
At 0.5 MPa it provides 628.3 N push and 527.8 N pull; at 0.7 MPa push is 879.6 N, with a maximum push of 128 kgf at 1.0 MPa. The usable extend range is 180-200 mm (a 20 mm window off the 200 mm full stroke). It uses a PT1/8 port, a female M8x1.25 rod-end thread, and an M12x1.25 adjuster thread.
No, the adjuster only limits how far the rod extends, leaving the piston area and force unchanged. Deceleration is handled by a fixed elastomer bumper at the stroke end, not an adjustable air cushion. Note that this plain compact cylinder will drift on air loss; use an external rod lock or pilot-operated check valve for fail-safe load holding.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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