Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X50-40S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X50-40S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø16mm bore and 50mm stroke, M5×0.8 air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ16 mm
- Stroke50 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- 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 MAJ16X50-40S
One cylinder, several stroke lengths: the MAJ16X50-40S carries a 50 mm base stroke that a stop screw on the body shortens anywhere inside a 40 mm window, so line changeovers need no re-piping or part swaps. Force from the 16 mm bore is 100.5 N push and 86.4 N pull at 0.5 MPa, climbing to 140.7 N at 0.7 MPa. Halving the 10 kgf theoretical vertical lift leaves roughly 5 kg of genuine lifting margin for grippers and tooling.
The riveted round body packs a stainless barrel, aluminium covers and a hard-chrome 6 mm rod into a slim envelope that slides into tight machine frames. Fixed bumper pads tame end-of-stroke shock - they decelerate only, unlike the adjustable air cushion of the MACJ family - and the built-in magnet accepts CMSG, DMSG or EMSG switches with no special ordering. Ports are M5x0.8; run 0.15-1.0 MPa (22-145 psi) filtered air at 30-800 mm/s.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X50-40S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X50-40S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 50 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 86 N |
| 0.7 MPa | 141 N | 121 N |
| Max (@1.0 MPa) | 21 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 MAJ16X50-40S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| -40 | 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 MAJ16X50-40S Is Used
Carton flap hold-down on a case packer
The 40 mm trim window sets exact flap contact depth, while the anti-impact pad stops the 50 mm stroke from hammering the fixture at cycle end.
PCB test rack clamp in electronics assembly
A 16 mm bore pushes 100.5 N at 0.5 MPa - enough to seat test fixtures firmly without stressing delicate connectors.
Ejector pin on a small injection mold
Mounted beside the die, the cylinder pops lightweight parts clear, with DMSG switches confirming full retract before the mold closes.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X50-40S the Right Cylinder?
Bore 16 is the floor of the MA range - nothing smaller exists - so move to the 20 mm bore (157.0 N push at 0.5 MPa) or 25 mm (245.3 N) when loads approach the cylinder's comfort zone. The adjuster is a mechanical end stop for the extend stroke only and holds nothing mid-travel; if the load must stay put on air loss, fit an external clamp. LB feet and FA flanges bolt straight on, an I or Y knuckle handles pivoting links, and the 50 mm stroke keeps side loads off the 6 mm rod if the workpiece is guided separately.
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 MAJ16X50-40S FAQ
Numbers for this bore: 100.5 N push and 86.4 N pull at 0.5 MPa, rising to 140.7 N push and 120.9 N pull at 0.7 MPa, and 20.5 kgf theoretical maximum at 1.0 MPa. Air supply spans 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof rating; cycle anywhere from 30 to 800 mm/s between -20 and +70 C.
It is not. The MAJ16X50-40S carries fixed anti-impact bumper pads that absorb the last of the travel and cut noise, but they decelerate only - for tunable air cushioning choose the MACJ family, which pairs the adjustable stroke with regulated cushions.
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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