Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-50SB
The AirTAC Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-50SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø32mm bore and 80mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ32 mm
- Full stroke80 mm
- Port sizePT1/8
- Adjuster threadM12×1.25
About the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-50SB
The AirTAC ACQJ32X80-50SB is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You get a usable extend range of 30-80 mm from the 80 mm full stroke, tunable directly on the machine without swapping parts. The retract stroke remains unaffected. An M12x1.25 adjuster thread handles the stroke reduction.
Because the piston area stays the same, output force is identical to a standard ACQ of this bore: 402.1 N push and 301.6 N pull at 0.5 MPa. This SB variant includes a male M14x1.5 piston rod end for direct load coupling and a built-in magnet (-S) for position sensing. The body uses fixed elastomer NBR bumpers at each end rather than adjustable air cushions, operating reliably from 0.15 to 1.0 MPa.
Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-50SB Technical Specifications
| Model | Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-50SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Full stroke | 80 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 302 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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 ACQJ32X80-50SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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 ACQJ32X80-50SB Is Used
Machining Fixture Stops
Dial in the exact extend position from 30 to 80 mm on a CNC lathe bar puller or loading fixture without machining new hard stops.
Product Changeover Pushers
Quickly alter the extend endpoint on a packaging line conveyor when switching between different carton depths or product sizes.
Prototype End Positions
Safely trial different extend distances on a new assembly station to find the optimal kinematic reach before finalizing the design.
Is the Airtac ACQJ32~40 Adjustable Thin-Type Cylinder ACQJ32X80-50SB the Right Cylinder?
If your application only requires a fixed 80 mm extend and never needs tuning, a standard ACQ32X80 cylinder will suffice and cost less. When sizing, note this 32 mm bore delivers 402.1 N push at 0.5 MPa; stepping down to a 25 mm bore drops that to 245.4 N, while a 40 mm bore increases it to 628.3 N. To order this adjustable unit correctly, confirm the 32 mm bore, 80 mm full stroke, 50 mm window, the S magnet for electronic or reed switches, and the B male 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 ACQJ32X80-50SB FAQ
This 32 mm bore cylinder outputs 402.1 N push and 301.6 N pull at 0.5 MPa, 562.9 N push at 0.7 MPa, and a maximum push of 82 kgf at 1.0 MPa. The 80 mm full stroke can be shortened by up to 50 mm, yielding a usable extend range of 30-80 mm.
No, the external M12x1.25 stop only limits how far the rod extends; piston area is unchanged so force remains identical to a standard ACQ. Deceleration relies on fixed elastomer NBR bumpers at both ends, not adjustable air cushions, so external shock absorbers are recommended for high-energy loads.
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1-Year Warranty
Covers non-human-caused product damage.
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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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