Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X50-10S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X50-10S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø40mm bore and 50mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke50 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 MAJ40X50-10S
Fine positioning on a short throw is what this build does best: 628.3 N of push at 0.5 MPa from the 40 mm bore, with the external stop screw shaving the extend stroke by up to 10 mm so fixtures can share one cylinder across small part variants. The piston lands on a fixed anti-impact bumper pad that decelerates at stroke end; it is a bumper, not a tunable air cushion like MACJ offers.
Underneath, a stainless round barrel is riveted to aluminium covers around a hard-chrome plated 16 mm rod, standing up to washdown where painted minis rust. The magnet comes standard in every piston, so CMSG, DMSG and EMSG switches mount without a special piston order. Sizing math: plan for about 377 N of real work at 0.5 MPa, enough to lift roughly 32 kg vertically once you hold a 2:1 margin.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X50-10S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X50-10S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 MAJ40X50-10S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 MAJ40X50-10S Is Used
Bushing press-in on aluminium gear housings
Shaving the extend stroke up to 10 mm sets a kiss-stop depth for pressing bronze bushings, and the 628 N push at 0.5 MPa seats them without distorting the housing.
Vision-check gate on an electronics line
A short swing arm holds PCB carriers in front of the camera; the built-in magnet and a DMSG switch confirm the gate is fully home every cycle.
Clip crimping in a wire harness cell
Terminal clips crimp in one hit with 879.6 N available at 0.7 MPa; the 10 mm window lets operators back the stop off slightly for thicker bundle sizes.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X50-10S the Right Cylinder?
Both directions matter here: pull force is 527.8 N at 0.5 MPa against a 628.3 N push, so retract-side loads get less muscle. Step down to a MAJ32 (402 N at 0.5 MPa) if the load is light; nothing in the MA range tops the 40 mm bore. The 10 mm window suits fine positioning where the final approach must land short of full stroke. Remember the external stop only trims the extend stroke and it holds nothing if air is lost. Pair LB feet with an I or Y knuckle for pivoting loads; the built-in magnet works with CMSG, DMSG and EMSG switches out of the box.
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 MAJ40X50-10S FAQ
Expect 628.3 N push and 527.8 N pull at 0.5 MPa, climbing to 879.6 N push at 0.7 MPa, with a 128.1 kgf theoretical max at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi) through the 1/8" port.
No. Every MA-series piston ships with the magnet built in, so CMSG, DMSG and EMSG switches clip onto the stainless barrel without a special order. The hard-chrome plated 16 mm rod also resists corrosion in washdown cells.
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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