Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-50S
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-50S 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 ACQJ40X200-50S
The ACQJ40X200-50S is a double-acting, single-rod JIS compact cylinder engineered for adjustable extend-stroke applications. As a long-stroke made-to-order variant, it provides a 200mm total stroke with a 50mm external adjustment window, allowing you to set the usable extend range anywhere from 150mm up to the full 200mm. The retract stroke remains completely unaffected. An external M12x1.25 threaded stop with a lock nut permits precise on-machine end-position tuning without swapping parts.
Because the adjustment mechanism only limits travel and leaves the piston area unchanged, the output force is identical to a standard ACQ of this bore. At 0.5 MPa, it delivers 628.3 N of push force and 527.8 N of pull force, peaking at 128 kgf maximum push at 1.0 MPa. The unit includes a Ø16mm piston rod, PT1/8 port, fixed elastomer bumpers at both ends for end-of-stroke deceleration, and a built-in piston magnet for position sensing.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-50S Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-50S |
|---|---|
| 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 ACQJ40X200-50S
| 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 ACQJ40X200-50S Is Used
Machining Fixture Stops
Dial in the exact extend position during product-changeover on CNC machining fixtures without machining new spacer blocks or replacing the cylinder.
Carton Feeder Setup
Adjust the extend stroke on packaging lines to accommodate varying carton sizes, ensuring precise push-off distances on the fly.
Assembly Press Tuning
Establish trial end positions for pressing operations in automated assembly machinery, allowing operators to fine-tune the 150-200mm range directly on the equipment.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-50S the Right Cylinder?
When sizing this 40mm bore model, verify if a standard stroke ACQ suffices, as fixed-stroke cylinders offer simpler setup if end-position tuning is unnecessary. For lower force needs, the 32mm bore provides 402.1 N push at 0.5 MPa; for higher demands, the 50mm bore yields 981.8 N push at 0.5 MPa. To order, confirm the 40mm bore, 200mm full stroke, 50mm adjustable window, the -S magnet for electronic or reed switches, and the female M8x1.25 rod-end thread. Note that for fail-safe load holding during air loss, an external rod lock or pilot-operated check valve is required, as the fixed bumper only decelerates near stroke end.
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 ACQJ40X200-50S FAQ
The usable extend range is 150-200mm (200mm full stroke minus the 50mm window). The force is identical to a standard ACQ40: 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa.
An external M12x1.25 threaded stop with a lock nut limits the extend stroke without altering piston area, so force remains unchanged. The retract stroke is unaffected. Deceleration is handled by fixed elastomer bumpers at both ends, not adjustable air cushions. The included -S magnet works with both reed and electronic solid-state switches.
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Related AirTAC ACQJ Compact Cylinders
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