Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40SB 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 ACQJ40X200-40SB
The AirTAC ACQJ40X200-40SB is a double-acting, single-rod JIS compact cylinder with a 200mm full stroke and an external extend stop. It features a 40mm bore, a male M14x1.5 rod end, and a built-in piston magnet. An external M12x1.25 threaded stop with a lock nut lets you shorten the extend stroke by up to 40mm, yielding a usable extend range of 160-200mm. The retract stroke remains unaffected. As a long-stroke made-to-order variant, this unit exceeds the 100mm standard maximum for this bore size, reaching into the extended 300mm range.
Because the piston area is unchanged, the output force is identical to a standard ACQ of this bore: 628.3N push and 527.8N pull at 0.5MPa. The cylinder uses a fixed NBR elastomer bumper at each end for end-of-stroke deceleration rather than an adjustable air cushion. Operating pressure spans 0.15-1.0MPa, and the integrated magnet works seamlessly with both reed and electronic solid-state switches.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40SB |
|---|---|
| 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 ACQJ40X200-40SB
| 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 ACQJ40X200-40SB Is Used
Machining Fixture Stops
Dial in the exact extend position on a CNC machining fixture during part changeover using the external stop, avoiding the need to machine or swap custom spacers.
Assembly Line Forming
Adjust the pressing depth on an assembly line forming station to accommodate different material thicknesses without altering the pneumatic pressure settings.
Packaging Feed Triggers
Fine-tune the actuation point of a product diverter or feed gate on packaging equipment to handle varying carton dimensions on the fly.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X200-40SB the Right Cylinder?
If your application needs less push force, the adjacent ACQJ32 bore yields 402.1N at 0.5MPa, while stepping up to the ACQJ50 provides 981.8N. When your end position never varies, a fixed-stroke ACQ cylinder is sufficient and more compact. To order this adjustable version correctly, confirm the 40mm bore, the 200mm full stroke, the 40mm adjustment window, the male M14x1.5 rod thread, and the magnet option.
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 ACQJ40X200-40SB FAQ
The usable extend range is 160-200mm (200mm full stroke minus the 40mm adjustment window). The output force is identical to a standard ACQ40: 628.3N push and 527.8N pull at 0.5MPa, 879.6N push at 0.7MPa, and a maximum push of 128kgf at 1.0MPa.
An external M12x1.25 threaded stop with a lock nut limits the extend stroke only; the retract stroke is unaffected. The adjustment changes stroke length but not piston area, so force remains constant. Deceleration is handled by fixed NBR elastomer bumpers, not adjustable air cushions.
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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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