Airtac ACE Compact Cylinder ACE20X35S
The AirTAC Airtac ACE Compact Cylinder ACE20X35S is a genuine double acting ISO 21287 compact air cylinder with a Ø20mm bore and 35mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. Its short compact envelope saves about 50% of the mounting length of an ISO 15552 profile cylinder.
- BoreØ20 mm
- Stroke35 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM6×1.0
- CushionFixed TPU bumper (both ends)
- 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 ACE Compact Cylinder ACE20X35S
This AirTAC ACE20X35S is a double acting ISO 21287 compact cylinder that uses air to both extend and retract its 10 mm rod. With a 20 mm bore, it delivers 157.1 N of push force at 0.5 MPa, which is enough for light clamping and positioning tasks in automated assembly fixtures. The hard-anodized aluminium body and S45C hard-chrome plated rod resist wear in continuous cycling, and a fixed TPU bumper at each end absorbs impact to protect the mechanism.
Because the body is about 50% shorter than an ISO 15552 profile cylinder, this model fits inside tight machine guards and compact jigs where a full-length cylinder would not. The -S code means a magnet is fitted, so you can mount CMSE or DMSE reed or solid-state switches to confirm the rod position. As a practical rule, plan for about 94 N of real work at 0.5 MPa, which translates to lifting roughly 9.6 kg vertically with a 2:1 safety margin.
Airtac ACE Compact Cylinder ACE20X35S Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE20X35S |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø20 mm |
| Stroke | 35 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 | Fixed TPU bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACE-series (ISO 21287) datasheet. Body: hard-anodized aluminium alloy; piston rod: S45C carbon steel with hard-chrome plating. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G. A built-in magnet is OPTIONAL — add the -S code to fit CMSE / DMSE position sensors.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 118 N |
| 0.7 MPa | 220 N | 165 N |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACE Compact Cylinder ACE20X35S
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×35 | Stroke length in mm. |
| S | Optional built-in magnet for CMSE / DMSE sensors (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
ACE-family variants: ACE (double acting), ASE / ATE (single acting push / pull), ACED (double rod), ACEJ (adjustable stroke), TACE / TACED (non-rotating twin-guide yoke). Mounting accessories: FA / FB flange, LB foot, CA / CB clevis, CR, SDB pivot, FTC; plus I and Y knuckles. Thread PT (blank) / G.
Where the Airtac ACE Compact Cylinder ACE20X35S Is Used
PCB Panel Clamping
Mount ACE20X35S in a soldering fixture to press and hold small PCB panels during wave soldering, using the 157.1 N push force to keep boards flat without distortion.
Carton Tabbing
Use in a carton erecting machine to push a folding tab into place on small boxes, with the 35 mm stroke matching the tab depth and the compact body fitting between guide rails.
Valve Stem Actuation
Actuate a small pneumatic valve stem in a test rig, where the 117.8 N retract force pulls the stem back reliably and the M5x0.8 port connects directly to a manifold.
Is the Airtac ACE Compact Cylinder ACE20X35S the Right Cylinder?
For a lighter duty, the ACE16X35S with 100.5 N push at 0.5 MPa is a smaller option, while the ACE25X35S at 245.4 N push provides more force in the same compact footprint. Since the stroke is 35 mm, well under the 100 mm maximum standard for this bore, it is a standard off-the-shelf unit. The M5x0.8 port suits small-bore air circuits, and the female M6x1.0 rod thread works with standard clevis or rod-end accessories. The fitted magnet allows position sensing, but remember this cylinder does not hold its load if air pressure is lost - use a rod lock or pilot check valve for vertical applications.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short stroke fits the compact body
- ✓ Port/thread type (PT / G)
- ✓ Add -S if you need the magnet for sensors
- ✓ Rod type (female / male B) & mount (FA/LB/CA)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Compact body: keep the stroke short and avoid side load on the rod.
- check Do not dismantle the threaded front/back covers.
- check Keep speed within the rated range; the TPU bumper absorbs stroke-end energy.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACE Compact Cylinder ACE20X35S FAQ
At 0.5 MPa, the push force is 157.1 N and the pull force is 117.8 N. At 0.7 MPa, push is 219.9 N and pull is 164.9 N. The theoretical maximum force is 32 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa (22-145 psi), with a proof pressure of 1.5 MPa (215 psi).
The ACE20X35S body is about 50% shorter than an ISO 15552 profile cylinder, so it saves space in tight enclosures and reduces the overall footprint of your equipment. It has a fixed TPU bumper at each end to absorb impact, and the magnet is fitted as an option (the -S code) to work with CMSE or DMSE switches for position sensing. The operating speed range is 30-500 mm/s.
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