Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100B
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø40mm bore and 90mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ40 mm
- Full stroke90 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100B
The AirTAC ACQJ40X90-100B is a double-acting JIS compact cylinder featuring an external threaded stop with a lock nut that restricts the extend end position. You can tune the usable extend stroke down to 0mm from the 90mm full stroke directly on your equipment, while the retract stroke remains unaffected. Because the piston area stays constant, output force equals a standard ACQ of the same bore.
This bore 40mm unit pushes 628.3N and pulls 527.8N at 0.5MPa. It incorporates fixed NBR elastomer bumpers at both ends for end-of-travel deceleration rather than adjustable air cushions. The male M14x1.5 piston rod end couples directly to your load, and the body retains sensor grooves even though this specific configuration ships without a magnet.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100B Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Full stroke | 90 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 ACQJ40X90-100B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×90 | 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 ACQJ40X90-100B Is Used
Machining Fixture Stops
Dial in the exact extend position for varying part widths on a milling fixture without machining new stop collars.
Product Changeover Diverters
Quickly reposition a conveyor diverting gate to accommodate different package lengths during production line changeovers.
Assembly Press Testing
Establish trial end positions for an assembly press to verify engagement forces before finalizing the mechanical setup.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ40X90-100B the Right Cylinder?
Choosing this bore 40mm unit gives 628.3N push force at 0.5MPa. Stepping down to a 32mm bore yields 402.1N, whereas a 50mm bore provides 981.8N. If your application never requires altering the extend endpoint, a fixed-stroke ACQ cylinder suffices. When ordering, verify the 40mm bore, 90mm full stroke, 100mm adjuster window, PT1/8 port, and the male M14x1.5 rod thread.
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 ACQJ40X90-100B FAQ
The bore 40mm cylinder provides 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. The full stroke is 90mm with a 100mm adjustment window, yielding a usable extend range of 0-90mm.
An external M12x1.25 threaded stop with a lock nut limits the extend length without reducing piston area, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for deceleration and will not hold a load if air pressure is lost; use an external rod lock for fail-safe holding.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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