Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X350-75S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X350-75S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 350mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke350 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 MAJ25X350-75S
A wide 75 mm setup window makes the MAJ25X350-75S the most flexible trim in this group: the external stop screw sets the extend stroke anywhere from 275 mm to the full 350 mm, covering several part heights on one cylinder. Double-acting air produces 245.3 N push and 206.1 N pull at 0.5 MPa on the 25 mm bore.
Construction is the classic MA recipe - a stainless round barrel rolled onto aluminium covers, a 20 um hard-chrome plated carbon-steel rod, and grease-retaining two-way piston seals. Vertical-lift sizing: about 25 kg at 0.5 MPa, so match real payload near 12 kg for a comfortable 2:1 margin. Both stroke ends ride on fixed anti-impact pads to tame cycle shock.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X350-75S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X350-75S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 350 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 MAJ25X350-75S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -75 | 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 MAJ25X350-75S Is Used
Multi-height stacking head
Places cartons at two stack heights on one palletizer lane; the 275-350 mm window covers both levels without respacing the frame.
Belt-line stop gate
Stops and releases totes on an assembly conveyor; roughly 147 N of working push at 0.5 MPa handles loaded totes with margin.
Filling nozzle lift
Raises a light filler head out of the fill path between cycles; about 25 kg of vertical lift at 0.5 MPa suits compact heads.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X350-75S the Right Cylinder?
Bore 20 manages 157 N at 0.5 MPa and bore 32 handles 402.2 N - pick the 25 mm (245.3 N) when payload plus friction sits in between. Note the adjuster sets extend length only and never holds position without air; add a check valve or mechanical support for suspended loads. FA flange and LB foot mountings, plus I / Y rod knuckles, cover most frames. At 350 mm the rod is long relative to its 10 mm diameter, so guide the load externally and keep side loads close to zero. This stroke is above the 300 mm standard maximum for bore 25 and ships as a made-to-order item.
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 MAJ25X350-75S FAQ
At 0.5 MPa: 245.3 N extend, 206.1 N retract. At 0.7 MPa: 343.4 N extend. Theoretical maximum: 50 kgf at 1.0 MPa. Supply air 0.15-1.0 MPa (22-145 psi) filtered to 40 um; travel speed 30-800 mm/s; ports 1/8 in.
The stainless-steel barrel resists the pitting that hits painted mini cylinders in damp, washed or outdoor air, while the 20 um hard-chrome rod keeps seal wear low over long strokes. Mounting is FA flange or LB foot, with I / Y rod knuckles available for linkages.
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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