Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø20mm bore and 100mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ20 mm
- Full stroke100 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 ACQJ20X100-100
The AirTAC ACQJ20X100-100 is a double-acting JIS compact cylinder with an external threaded stop and lock nut that limits the extend end position. You can fine-tune the usable extend range from 0 up to 100 mm directly on your equipment without swapping parts. The retract stroke remains completely unaffected by this adjustment.
Because the piston area stays the same, output force is identical to a standard ACQ of this bore, delivering 157.1 N push at 0.5 MPa. The body features a 10 mm piston rod, an M5x0.8 female rod-end thread, and an M8x1.25 external adjuster thread. It uses fixed elastomer bumpers at both ends for deceleration and includes sensor grooves, though this specific configuration ships without a magnet.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100 Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø20 mm |
| Full stroke | 100 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 ACQJ20X100-100
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 20 | Bore size in mm. |
| ×100 | 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 ACQJ20X100-100 Is Used
Machining Fixture Stops
Dial in the exact extend position of a clamping arm on a CNC machining fixture during setup, absorbing part tolerance variations without manufacturing new stop collars.
Packaging Changeover
Rapidly adapt a cardboard feeding mechanism on a packaging line for different carton depths by winding the external stop out to the new required extend length.
Prototype Positioning
Establish optimal end-of-stroke locations for a pressing or testing station on a laboratory prototype rig, allowing engineers to test multiple extend endpoints quickly.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-100 the Right Cylinder?
When sizing this bore 20 unit, consider the neighbouring 16 mm bore (100.5 N push @0.5 MPa) for lighter duties, or the 25 mm bore (245.4 N push @0.5 MPa) when you need greater thrust. If your application never requires end-position variation, a fixed-stroke ACQ20X100 is simpler and sufficient. To order this adjustable version correctly, confirm the 20 mm bore, 100 mm full stroke, 100 mm window, and the default female 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 ACQJ20X100-100 FAQ
This cylinder provides 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 usable extend range is 0-100 mm, set by the 100 mm full stroke minus the 100 mm adjustment window.
The external M8x1.25 threaded stop with a lock nut mechanically limits how far the rod extends, shortening the stroke length only. It does not alter the piston area, so force remains identical to a standard ACQ. Deceleration relies on fixed elastomer bumpers, not an adjustable air cushion.
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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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