
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X350-10S 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.
Stroke budgets change on the floor, and the MAJ25X350-10S is built for that: turn the external stop screw and the extend stroke shortens by up to 10 mm from the ordered 350 mm. Air drives the rod both ways - 245.3 N out, 206.1 N back at 0.5 MPa - with pressure from 0.15-1.0 MPa (22-145 psi) and speeds of 30-800 mm/s. Because 350 mm exceeds the 300 mm standard ceiling for a 25 mm bore, AirTAC builds this stroke to order.
The two-way piston seal doubles as a grease store, cutting relube rounds on long runs. At 0.5 MPa keep actual duty near 147 N; that equals lifting roughly 12.5 kg dead vertical with a 2:1 factor. The magnet is fitted as standard, so position checks with CMSG / DMSG / EMSG switches need no special-order piston, and the riveted stainless round barrel plus 20 um hard-chrome rod stand up to damp or washed-down corners.
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ25X350-10S |
|---|---|
| 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.
| 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.
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 25 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -10 | 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.
Sets a fine end position for parts entering a CNC vise; the 10 mm trim dials out tolerance stack between fixture batches without shims.
Kicks small-shot gates or sprue remnants off a compact mold; 245.3 N push clears nylon or ABS bits at 0.5 MPa.
Presses caps onto laboratory vials with roughly 147 N of working force; stainless surfaces tolerate repeated alcohol wipe-downs.
Sizing goes two ways here: drop to bore 20 only if 157 N at 0.5 MPa still clears your load, or step to bore 32 for 402.2 N when duty cycles rise. The tight 10 mm trim suits fine positioning at one end of travel. Choose FA flange or LB foot mounting and I / Y knuckles for hinged loads. Long strokes like 350 mm amplify misalignment, so fit external guides and keep the rod square to the load. Note that the stop screw fixes the extend position mechanically but is not a brake - on air loss the rod will move.
Quick checklist
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, and up to 50.0 kgf theoretically at 1.0 MPa. Air supply is 0.15-1.0 MPa (22-145 psi), filtration 40 um, speed 30-800 mm/s, port 1/8", rod thread M10x1.25.
Yes, every MAJ25X350-10S ships with the magnet built in as standard equipment, so CMSG, DMSG or EMSG switches mount directly on the barrel without a special-order piston or extra charge.
Genuine AirTAC parts produced by AirTAC factory.
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