Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-20B
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-20B 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 ACQJ20X60-20B
The AirTAC ACQJ20X60-20B is a double-acting JIS compact cylinder featuring a 20mm bore and a 60mm full stroke. An external threaded stop with a lock nut permits on-machine extend end-position tuning. You can shorten the outward stroke by up to 20mm, yielding a usable extend range of 40 to 60mm. The retract distance remains completely unaffected by this adjustment.
Because the piston area stays constant, output force matches a standard ACQ exactly, delivering 157.1N push at 0.5MPa. This variant includes a male M8x1.25 rod-end thread for direct load coupling and uses an M5x0.8 port. It relies on fixed elastomer bumpers for end-of-stroke deceleration rather than adjustable air cushions. The body retains magnetic-switch grooves, though this specific SKU ships without a magnet.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-20B Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-20B |
|---|---|
| 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 ACQJ20X60-20B
| 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 ACQJ20X60-20B Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture without machining new spacers, accommodating raw material size variations directly on the floor.
Packaging Changeover
Rapidly reposition a product diverting gate during format changeovers, using the external stop to set new endpoints for different carton lengths.
Assembly Press Trials
Establish precise trial insertion depths on an electronic assembly press, fine-tuning the extend distance to prevent damaging delicate components.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X60-20B the Right Cylinder?
Selecting this 20mm bore unit provides 157.1N push and 117.8N pull at 0.5MPa. If your application requires less force, stepping down to a 16mm bore yields 100.5N push, while sizing up to a 25mm bore provides 245.4N push. A fixed-stroke ACQ cylinder is sufficient if your extend endpoint never varies. When ordering, confirm the 60mm full stroke, the 20mm adjustment window, the male M8x1.25 rod thread, and whether you need the magnet option for sensor tracking.
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 ACQJ20X60-20B FAQ
It provides 157.1N push and 117.8N pull at 0.5MPa, 219.9N push at 0.7MPa, and a maximum push of 32kgf at 1.0MPa. The full stroke is 60mm with a 20mm adjustment window, allowing the extend stroke to be set anywhere from 40mm to 60mm.
The M8x1.25 external threaded stop mechanically limits the extend distance without altering piston area, so force remains identical to a standard ACQ. The cylinder uses fixed elastomer bumpers for deceleration. Note that it will not hold a load on air loss; use an external rod lock or pilot-operated check valve 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 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 ACQJ20X60-20B
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.