Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X65-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X65-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 65mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke65 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 MAJ25X65-20S
Double-acting and equipped with a 20 mm extend-stroke adjustment, this bore-25 MAJ delivers 343.4 N of push at 0.7 MPa (245.3 N at 0.5 MPa) through a hard-chrome steel rod on a riveted stainless barrel. Where painted minis corrode in damp or washdown corners, the stainless tube and grease-retaining two-way piston seal keep running; the anti-impact pad at each end tames end-of-stroke shock without any air cushion circuit.
Lift maths: 245.3 N at 0.5 MPa balances roughly 25 kgf, so halve it for margin and the rod will raise about 12 kg vertically - enough for a small machined housing lifted from a pallet jig. Mount it as FA flange or LB foot, and add a knuckle (I or Y) when the load needs to pivot. Proof pressure is 1.5 MPa (215 psi) and the operating range is -20 to +70 C.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X65-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X65-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 65 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 MAJ25X65-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×65 | 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 MAJ25X65-20S Is Used
Diverting cartons on a takeaway conveyor
Swings a lightweight diverter arm at line speed, 30-800 mm/s, trimming extend travel 20 mm to match carton sizes.
Clamping small die-cast housings
Holds a zinc die-cast housing in a machining jig with about 12 kg vertical-lift equivalent holding margin.
Position-verified gate on a bottling line
A DMSG switch on the standard magnet reports gate-closed state to the PLC while the stop screw sets the reach.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X65-20S the Right Cylinder?
Compare against the smaller bore-20 version (157.0 N at 0.5 MPa) or the larger bore-32 (402.2 N at 0.5 MPa) before fixing on 25 mm; this size is the sweet spot for medium jigs. The 20 mm window handles stations where the product height varies by a few millimetres. With a 65 mm stroke the rod is short, so side load is rarely a problem - still, guide the load externally if it is not rigid. The magnet ships fitted, so DMSG or EMSG switches snap on without special orders.
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 MAJ25X65-20S FAQ
Push at 0.5 MPa is 245.3 N, pull 206.1 N; at 0.7 MPa push reaches 343.4 N and pull 288.5 N, with a 50 kgf theoretical maximum at 1.0 MPa. Ports are 1/8", rod thread M10x1.25, and the extend stroke adjusts within a 20 mm window.
No - the fixed bumper pads only decelerate the piston near stroke end; adjustable air cushioning belongs to the MACJ family. The MAJ keeps the circuit simple: plain double-acting air, 0.15-1.0 MPa (22-145 psi), speeds of 30-800 mm/s.
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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