Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-20
The AirTAC Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-20 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 ACQJ20X100-20
The AirTAC ACQJ20X100-20 is a double-acting JIS compact cylinder featuring an external extend stop. A threaded M8x1.25 adjuster and lock nut let you shorten the outward stroke by up to 20 mm, yielding a usable extend range of 80-100 mm. The retract stroke remains fixed at the full 100 mm. Because the piston area stays constant, output force is identical to a standard ACQ of this bore.
This 20 mm bore unit delivers 157.1 N of push force at 0.5 MPa and includes fixed elastomer bumpers at both ends for end-of-trroke deceleration. The body features integrated magnetic-switch grooves, though this specific configuration ships without a magnet. Operating pressure spans 0.15-1.0 MPa, and the M5x0.8 port ensures reliable pneumatic supply.
Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-20 Technical Specifications
| Model | Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-20 |
|---|---|
| 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 ACQJ20X100-20
| 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 ACQJ20X100-20 Is Used
Machining Fixture Stops
Dial in the exact clamping reach on a CNC fixture during setup, allowing operators to shift the extend endpoint by 20 mm without swapping out cylinders.
Carton Forming Limits
Accommodate varying package sizes on a packaging line by tweaking the pusher's outward travel within the 80-100 mm window for rapid product changeovers.
Lab Test Positioning
Establish precise trial end positions for testing probes or sample pushers, fine-tuning the extension length directly on the machine to find the optimal contact point.
Is the Airtac ACQJ12~25 Adjustable Compact Cylinder ACQJ20X100-20 the Right Cylinder?
When sizing this 20 mm bore actuator, stepping down to a 16 mm bore reduces push force to 100.5 N at 0.5 MPa, while moving up to a 25 mm bore increases it to 245.4 N. If your application requires a constant end position and never needs on-the-fly adjustments, a fixed-stroke ACQ cylinder will suffice. To order this adjustable model correctly, confirm the 20 mm bore, 100 mm full stroke, 20 mm window, female rod-end thread, and whether you require the internal magnet.
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 ACQJ20X100-20 FAQ
The push force is 157.1 N and pull is 117.8 N at 0.5 MPa; push is 219.9 N at 0.7 MPa with a maximum push of 32 kgf at 1.0 MPa. The usable extend range is 80-100 mm (a 20 mm window off the 100 mm full stroke). The external adjuster thread is M8x1.25.
No, the adjuster only limits the extend stroke length, so the force remains identical to a standard ACQ. Deceleration is handled by fixed elastomer bumpers at both ends rather than adjustable air cushions. For high-speed or high-energy loads, consider adding an external shock absorber or slowing the approach.
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 ACQJ20X100-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.