Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X35-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X35-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 35mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke35 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM10×1.25
- CushionFixed anti-impact bumper pads
- 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X35-20S
Built for jobs where the exact end position is settled on the machine floor, this double-acting 25 mm MAJ pairs a 35 mm stroke with a 20 mm on-site trimming window. Expect 245.3 N of push and 206.1 N of pull at 0.5 MPa, rising to 343.4 N at 0.7 MPa, across a 0.15-1.0 MPa (22-145 psi) supply at 30-800 mm/s.
Around 147 N of the 0.5 MPa rating is a sensible working target once friction and pressure dips are allowed for. The riveted construction of stainless barrel, chrome-plated rod and aluminium covers rides out workshop humidity, and because the magnet is fitted as standard, CMSG, DMSG or EMSG switches drop on for end-of-stroke signals with no special-order piston.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X35-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X35-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 35 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 – 800 mm/s |
| Cushion | Fixed anti-impact bumper pads |
| Max standard stroke | Up to 300 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X35-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×35 | Stroke length in mm. |
| -20 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X35-20S Is Used
Feeder gate indexing
A slide gate meters plastic caps into a hopper; the 20 mm range absorbs gate-thickness changes when a different cap mould goes in.
Jig pin ejector
The rod kicks locating pins out of a welding jig so operators can drop the next bracket in, with bumpers damping the eject at stroke end.
Carton flap tucker
On a small case packer the cylinder folds top flaps before taping, and a DMSG switch confirms the flap is home each cycle.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X35-20S the Right Cylinder?
If 245.3 N at 0.5 MPa leaves you oversize, the 20 mm bore still manages 157.0 N; if the part is heavier, the 32 mm bore raises push to 402.2 N. The 20 mm window absorbs most tooling adjustments, though the screw is only an extend-side stop, so anything hanging on the rod can settle when air is removed. Plumb it via the 1/8" ports, fit an M10x1.25 male thread accessory at the rod, and choose FA flange or LB foot mounting with an I or Y knuckle as the job demands. Keep external guides on any side load.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
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 piston rod.
- check Do not dismantle the riveted front/back covers.
- check Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X35-20S FAQ
Push 245.3 N and pull 206.1 N at 0.5 MPa; push 343.4 N and pull 288.5 N at 0.7 MPa; theoretical peak 50 kgf at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, with the extend stroke trimmed within the 20 mm window by the external screw.
CMSG, DMSG and EMSG models all detect the piston magnet that ships as standard, clipping onto the stainless barrel with no special-order piston. If a downstream jam stalls the rod mid-travel, external stops or a separate clamping method are needed, since the adjuster only acts at the extend end.
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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