Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X30-10S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X30-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 30mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke30 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM12×1.25
- 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 MAJ40X30-10S
A 40 mm bore round-body mini cylinder rated at 628 N of push force at 0.5 MPa, the MAJ40X30-10S runs double-acting air over a 30 mm stroke whose extend limit can be wound down by up to 10 mm with the external stop screw. Clean, dry air at 0.15-1.0 MPa (22-145 psi) drives the rod both ways at 30-800 mm/s, and a fixed bumper pad softens each stroke end.
The stainless-steel barrel and hard-chrome plated rod (20 um) shrug off condensation and mild washdown, a real edge over painted minis in damp or food-adjacent spots. The magnet is built in as standard, so CMSG, DMSG or EMSG switches clamp straight onto the body. At full 0.5 MPa push the theoretical lift is about 64 kg, so budgeting real work at roughly 377 N (60% of rating) leaves honest headroom for friction.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X30-10S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X30-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 500 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MAJ40X30-10S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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.
Where the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X30-10S Is Used
Arbor press ejector
Knock finished bushings out of a small press die - 628 N at 0.5 MPa clears parts in one 30 mm hit, trimmed to 25 mm with the stop screw.
Carton kick-off diverter
Swing or push light cartons off a packaging conveyor at the lane change; the 10 mm window dials in the throw so cartons never over-travel.
Lid snap-down station
Snap caps onto cosmetic jars; the fixed bumper keeps the 30 mm approach from slamming the tooling at the end of the stroke.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X30-10S the Right Cylinder?
Step down to the 32 mm MAJ if 402 N at 0.5 MPa covers the job; this 40 mm bore earns its place when the full 628 N is genuinely needed. The stop screw is a mechanical end stop for the extend stroke only - it does not lock the rod against drift when air pressure is lost, so add a blocking valve if the load must stay put. FA flange and LB foot brackets plus I and Y rod knuckles cover most fixings, and the built-in magnet pairs with CMSG / DMSG / EMSG switches without a special-order piston.
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 MAJ40X30-10S FAQ
At 0.5 MPa it pushes 628 N and pulls 528 N; at 0.7 MPa those figures rise to 880 N push and 739 N pull. The theoretical ceiling at 1.0 MPa is 128 kgf. All values assume double-acting air on both ports.
No. Every MA-series cylinder ships with the magnet built in, so CMSG, DMSG or EMSG reed switches drop straight onto the stainless barrel for end-of-stroke signalling.
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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