Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-10SB
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-10SB is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 90mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke90 mm
- Port sizeM5×0.8
- Adjuster threadM8×1.25
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-10SB
The AirTAC ACQJ20X90-10SB is a double-acting JIS compact cylinder with an external threaded stop that lets you fine-tune the extend end position directly on your machinery. Out of a 90 mm full stroke, the lock-nut adjuster provides a 10 mm window, yielding a usable extend range of 80 to 90 mm. The retract stroke remains completely unaffected by this mechanism.
Because the piston area stays constant, output force matches a standard ACQ exactly, delivering 157.1 N push and 117.8 N pull at 0.5 MPa. This bore 20 mm unit includes a male M8x1.25 rod end for direct load coupling, an integrated piston magnet for position sensing, and fixed elastomer bumpers at both ends. Operating pressure spans 0.15 to 1.0 MPa with a speed range of 30-500 mm/s.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-10SB Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-10SB |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 90 mm |
| Adjuster thread | M8×1.25 |
| Port size | M5×0.8 |
| 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 | M5×0.8 (F) / M8×1.25 (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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-10SB
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-10SB Is Used
Machining Fixture Clamps
Dial in the exact clamping reach on a CNC milling fixture. The external stop allows operators to compensate for varying part thicknesses without swapping out the cylinder body.
Packaging Diverter Arms
Adjust the stroke length for product changeovers on a packaging line. The 10 mm window lets you fine-tune the diverter push distance to match different carton widths rapidly.
Electronic PCB Test Rigs
Set precise probe descent depths during trial runs on PCB testing equipment. The lock-nut mechanism holds the 80-90 mm extend position securely against vibration.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-10SB the Right Cylinder?
Choosing this bore 20 mm unit means needing 157.1 N push at 0.5 MPa alongside on-machine extend tuning. If your application requires less force, the bore 16 version provides 100.5 N push, whereas stepping up to a bore 25 cylinder yields 245.4 N. A fixed-stroke ACQ is sufficient if the end position never needs alteration. Confirm ordering essentials: 20 mm bore, 90 mm full stroke, 10 mm window, the -S magnet, and the -B male M8x1.25 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 ACQJ12~25 Adjustable Compact Cylinder ACQJ20X90-10SB FAQ
It delivers 157.1 N push and 117.8 N pull at 0.5 MPa, 219.9 N push at 0.7 MPa, and a maximum push of 32 kgf at 1.0 MPa. The 10 mm window allows a usable extend range of 80 to 90 mm out of the 90 mm full stroke.
No, the adjuster changes stroke length only, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers at each end for deceleration rather than an adjustable air cushion, and the -S magnet works with reed or electronic solid-state switches.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC ACQJ Compact Cylinders
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