Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X300-30S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X300-30S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø25mm bore and 300mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ25 mm
- Stroke300 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 MAJ25X300-30S
Forget re-ordering when the layout changes: with a 30 mm window, the MAJ25X300-30S lets a technician dial the extend stroke down at the stop screw and re-tune it any time. Running 0.15-1.0 MPa (22-145 psi), it delivers 245.3 N forward and 206.1 N back at 0.5 MPa, with speed settable from 30 to 800 mm/s.
FA flange and LB foot brackets plus I and Y knuckles cover most small-fixture mounts, and the piston magnet is standard, ready for CMSG / DMSG / EMSG reed switches. Size with headroom: treat about 147 N as the practical continuous push at 0.5 MPa, and count on lifting a 12 kg load vertically once you halve the 25 kg theoretical lift figure.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X300-30S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X300-30S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 300 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 MAJ25X300-30S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×300 | 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 MAJ25X300-30S Is Used
Gate latch on a powder-coating booth
The stainless barrel and chrome rod ride through powder overspray and wipe-down while the rod latches a light sliding booth door.
Reagent tray present on a lab autoloader
Present and withdraw light trays; the 206.1 N pull force at 0.5 MPa retracts the tray cleanly against gravity and guide friction.
Carton hold-down on a taping head
Press flaps during taping with 245.3 N at 0.5 MPa; a 30 mm trim absorbs carton height variation without re-gapping the frame.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X300-30S the Right Cylinder?
Compare before ordering: bore 20 delivers 157.0 N and bore 32 delivers 402.2 N at 0.5 MPa, so this 245.3 N bore 25 sits mid-range for small clamping and transfer jobs. The adjuster only shortens the extend stroke - it never adds travel, and it will not hold position if air pressure drops, since it is a stop rather than a brake. Mount with the FA flange for face fixing or LB feet for base fixing, fit I or Y knuckles where the load pivots, and rely on the standard magnet for DMSG position signals.
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 MAJ25X300-30S FAQ
At 0.5 MPa this cylinder pushes with 245.3 N and retracts at 206.1 N; on 0.7 MPa air that becomes 343.4 N and 288.5 N, and the theoretical ceiling at 1.0 MPa is 50 kgf on this 25 mm bore. Port size is 1/8", rod is 10 mm with an M10x1.25 male thread.
A stainless-steel round barrel rolled together with aluminium-alloy covers, plus a hard-chrome plated carbon-steel rod, resists mild corrosion and rinse-down. Stroke-end impact is taken by fixed bumper pads - these decelerate only and are not adjustable cushions; that feature belongs to the MACJ family.
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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