Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-40
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-40 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 60mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke60 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 ACQJ20X60-40
The AirTAC ACQJ20X60-40 is a JIS compact, double-acting pneumatic cylinder featuring an external stroke adjuster. A threaded stop with a lock nut restricts the extend end position, providing a usable extend range of 20 to 60 mm from the 60 mm full stroke. The retract movement remains completely unaffected by this adjustment.
Because the piston area stays constant, output force is identical to a standard ACQ bore 20, delivering 157.1 N push at 0.5 MPa. The unit incorporates fixed elastomer TPU bumpers at both ends rather than adjustable air cushions. It operates with an M5x0.8 port, a 10 mm rod, and a female M5x0.8 rod-end thread.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-40 Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-40 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 60 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 ACQJ20X60-40
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×60 | 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 ACQJ20X60-40 Is Used
Machining Fixture Stops
Dial in the exact clamping extension on a CNC lathe without machining new spacer blocks when raw material dimensions vary slightly.
Carton Sealing Turrets
Modify the folding arm reach on a packaging line during a product size changeover, utilizing the 20 to 60 mm extend window.
Assembly Press Probing
Establish a safe trial end position for pressing bearings, leveraging the 157.1 N push force at 0.5 MPa before finalizing the setup.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-40 the Right Cylinder?
If you need less push force, the adjacent ACQJ16 model yields 100.5 N at 0.5 MPa, while stepping up to the ACQJ25 bore provides 245.4 N. A fixed-stroke ACQ20X60 is sufficient if your end position never requires tuning. When ordering this adjustable version, verify the 20 mm bore, 60 mm full stroke, 40 mm adjuster window, and the default female rod thread. Note that this specific SKU lacks the -S magnet option, although the body still retains sensor grooves for adding external reed or solid-state switches.
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 ACQJ20X60-40 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 full stroke is 60 mm with a 40 mm adjustment window, yielding a usable extend range of 20-60 mm. The retract stroke is unaffected by the adjuster.
An external M8x1.25 threaded stop with a lock nut mechanically limits the extend length, changing only the stroke distance without altering the piston area or force. Deceleration is handled by fixed elastomer TPU bumpers at both ends, not adjustable air cushions. For high-speed or high-energy loads, an external shock absorber should be added.
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
Request a Quote for Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.