Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-30B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-30B 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 ACQJ40X200-30B
The AirTAC ACQJ40X200-30B is a double-acting JIS compact cylinder built for long-stroke, made-to-order applications requiring precise extend-end positioning. An external M12x1.25 threaded stop and lock nut lets you fine-tune the extend stroke from 170 mm up to the full 200 mm directly on the machine, while the retract stroke remains completely unaffected. This 200 mm stroke exceeds the standard 100 mm maximum for this bore, falling into the extended long-stroke range.
Because the adjuster only limits travel length and not the piston area, the output force is identical to a standard ACQ40, delivering 628.3 N push and 527.8 N pull at 0.5 MPa. The unit features a male M14x1.5 rod-end thread for direct load coupling, a fixed NBR elastomer bumper at each end for end-of-stroke deceleration, and a PT1/8 port. Note that this specific configuration ships without a magnet, though the body retains magnetic-switch grooves for optional sensor installation.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-30B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-30B |
|---|---|
| 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 ACQJ40X200-30B
| 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 ACQJ40X200-30B Is Used
Machining Fixture Stops
Dial in the exact extend position from 170 to 200 mm during product-changeover on CNC machining fixtures without machining new stop blocks.
Conveyor Diverters
Adjust the stroke length on packaging line diverters to handle varying box sizes, using the fixed NBR bumper to absorb the 879.6 N force at 0.7 MPa.
Assembly Press Trial
Set trial end positions on automated assembly presses, safely testing engagement depths before locking the M12x1.25 adjuster nut into place.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-30B the Right Cylinder?
When sizing this actuator, consider the adjacent bores: a 32 mm bore yields 402.1 N push at 0.5 MPa, while a 50 mm bore provides 981.8 N, making the 40 mm bore a solid middle ground at 628.3 N. If your process never requires altering the extend end position, a fixed-stroke standard ACQ cylinder will suffice and avoid the adjuster overhang. For ordering, confirm the 40 mm bore, 200 mm full stroke, 30 mm adjustable window, the male M14x1.5 rod thread (-B), and that no magnet is required. Keep in mind a plain ACQ-type cylinder does not hold its load on air loss; for fail-safe holding, specify an external rod lock or pilot-operated check valve.
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 ACQJ40X200-30B FAQ
The usable extend range is 170-200 mm (200 mm full stroke minus the 30 mm 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. The retract stroke is unaffected.
An external M12x1.25 threaded stop with a lock nut limits the extend travel, changing only the stroke length and not the piston area, so force is unchanged. This specific model (-B) ships without a sensor magnet, though the body retains sensor grooves. It uses a fixed NBR bumper, not an adjustable air cushion.
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Related AirTAC ACQJ Compact Cylinders
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