Airtac ACQ Ultra Thin Air Cylinder ACQ40X20
The AirTAC Airtac ACQ Ultra Thin Air Cylinder ACQ40X20 is a genuine double-acting COMPACT (thin) air cylinder built to JIS dimensions, with a Ø40mm bore and 20mm stroke, PT1/8 air ports and a C-clip / riveted short body that saves mounting depth. Magnetic-switch slots around the body accept position sensors.
- BoreØ40 mm
- Stroke20 mm
- Port sizePT1/8
- Acting typeDouble acting
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- ConfigurationStandard compact
- 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 ACQ Ultra Thin Air Cylinder ACQ40X20
The AirTAC ACQ40X20 is a double-acting JIS compact air cylinder engineered for tight axial spaces. It produces 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. The short C-clip and riveted piston-to-rod design significantly reduces overall length compared to standard round-body units, minimizing machine footprint.
This 40 mm bore unit features a 16 mm piston rod and a PT1/8 port. Instead of an adjustable air cushion, it relies on a fixed NBR elastomer bumper at each end to absorb end-stop impact. The body includes grooves for magnetic switches, though this specific configuration ships without a magnet.
Airtac ACQ Ultra Thin Air Cylinder ACQ40X20 Technical Specifications
| Model | Airtac ACQ Ultra Thin Air Cylinder ACQ40X20 |
|---|---|
| Series | ACQ JIS compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 male (B) |
| 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 |
| Cushion | Bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACQ JIS compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard); G and NPT available. Rod: female thread (blank) / male thread (B).
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACQ Ultra Thin Air Cylinder ACQ40X20
| ACQ | JIS compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard (G / NPT available). Related ACQ-family variants: ASQ (single-acting push), ATQ (single-acting pull), ACQD (double rod), ACQJ (adjustable stroke), TACQ (guided / non-rotating).
Where the Airtac ACQ Ultra Thin Air Cylinder ACQ40X20 Is Used
CNC Fixture Clamping
Provides 628.3 N of extend force at 0.5 MPa to secure aluminum housings inside CNC milling fixtures, utilizing the short 20 mm stroke to keep the work envelope compact.
Package Diverting Arm
Actuates a routing flap on a logistics conveyor line, where the fixed NBR bumper absorbs the mechanical stop impact and the space-saving body fits within the narrow side-frame gap.
Carton Sealing Press
Drives a sealing head down onto cardboard cartons, operating at speeds up to 500 mm/s while the 16 mm rod resists deflection during the brief contact cycle.
Is the Airtac ACQ Ultra Thin Air Cylinder ACQ40X20 the Right Cylinder?
When sizing your actuator, consider the adjacent bore options: stepping down to the 32 mm bore yields 402.1 N push at 0.5 MPa, while stepping up to the 50 mm bore provides 981.8 N. To order this ACQ40X20 correctly, confirm the 40 mm bore, 20 mm stroke, PT1/8 port, female M8x1.25 rod thread, and no magnet. Keep in mind this cylinder does not hold its position if air pressure drops; the rod will drift, requiring an external rod lock or pilot-operated check valve for fail-safe load holding.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short-body depth vs. a round-body cylinder
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
- ✓ Side load — avoid on a compact rod
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the short piston rod.
- check Very long strokes are unsuitable for the compact body.
- check Handle the C-clip carefully; seat it fully in its groove.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACQ Ultra Thin Air Cylinder ACQ40X20 FAQ
The 40 mm bore provides 628.3 N push and 527.8 N pull at 0.5 MPa, 879.6 N push at 0.7 MPa, and a maximum push of 128 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a speed range of 30-500 mm/s.
No. It uses a fixed NBR elastomer bumper at each end to decelerate the piston, which is not field-adjustable; for high energy loads you should slow the approach or add an external shock absorber. Additionally, this model ships without a magnet, though the body retains grooves for mounting reed or electronic switches if needed.
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.
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