Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X80-30S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X80-30S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 80mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke80 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 MAJ25X80-30S
Half the guesswork disappears with the MAJ25X80-30S: its external stop screw trims the extend stroke anywhere within a 30 mm window, so one catalogue part covers several product widths. This 25 mm bore, 80 mm stroke double-acting mini develops 245.3 N of push at 0.5 MPa and runs the standard 30-800 mm/s speed band.
Because the round barrel is stainless steel and the 10 mm rod is hard-chrome plated, the cylinder tolerates damp outdoor fixtures and periodic washdown that would rust painted minis. With a sensible 2:1 margin, budget about 147 N for the actual workload - enough, for instance, to lift a 12 kg fixture plate vertically at 0.5 MPa.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X80-30S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X80-30S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 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 MAJ25X80-30S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×80 | Stroke length in mm. |
| -30 | 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 MAJ25X80-30S Is Used
Tray denesting ramp
Presses stacks of trays down onto a denesting ramp; the 30 mm window matches the depth difference between shallow and deep trays.
Bottle cap press-on head
Seats snap caps on cosmetic bottles at a filling bench, where 245 N at 0.5 MPa closes the cap without crushing the shoulder.
Lane width gate on a filler
Sets guide-rail width for different bottle diameters; the adjuster screw is backed off between changeovers instead of swapping cylinders.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X80-30S the Right Cylinder?
Sizing sideways: a 20 mm MAJ gives you 157 N at 0.5 MPa and costs less, while a 40 mm bore raises push to 628.3 N for stiff clamps. The -30 stop is a mechanical extend limit, not a brake - pressure loss still lets the rod drift, so hold loads with valves or a lock unit. Foot (LB) and flange (FA) mounts plus I/Y knuckles cover most jig frames, and the magnet is already inside, ready for DMSG or CMSG switches.
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 MAJ25X80-30S FAQ
At 0.5 MPa the MAJ25X80-30S pushes 245.3 N and pulls 206.1 N; at 0.7 MPa, 343.4 N push and 288.5 N pull. Maximum theoretical force is 50 kgf at 1.0 MPa. Keep the air filtered to 40 um and within 0.15-1.0 MPa (22-145 psi).
The barrel is stainless steel and the rod hard-chrome plated, so splash zones and routine hose-down do not chew the body the way they would a painted mini. Ports are 1/8", and the standard magnet works with CMSG, DMSG or EMSG switches for reliable feedback in damp areas.
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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