Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-40S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-40S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø16mm bore and 70mm 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
- Stroke70 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 MAJ16X70-40S
A compact round-body actuator that lets you dial the extend stroke in on the machine: an external stop screw trims the MAJ16X70-40S anywhere inside its 40 mm window, while double-acting air still drives the rod both ways. For the 16 mm bore this means 100.5 N on extend and 86.4 N on retract at 0.5 MPa, climbing to 140.7 N at 0.7 MPa, with speeds of 30-800 mm/s and a 0.15-1.0 MPa (22-145 psi) supply.
The stainless barrel and hard-chrome plated carbon-steel rod (20 um) shrug off condensation and mild washdown, an edge over painted-steel minis in damp corners. Fixed anti-impact pads soften the stroke-end hit, though they decelerate only and are not tunable cushions. As a working figure, plan on about 60 N of real effort at 0.5 MPa - roughly 30% under the raw rating - which raises a 5 kg part vertically with a 2:1 margin.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-40S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-40S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 70 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 MAJ16X70-40S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×70 | 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 MAJ16X70-40S Is Used
Bottle reject finger
A short jab of the rod nudges underfilled 250 ml bottles off a filling-line conveyor into the reject chute, with the 40 mm window letting you match the lane width on site.
Nest ejector on an indexing table
Ejects brass inserts from a drill-and-tap nest once the cycle finishes; about 60 N of usable 0.5 MPa thrust is ample for parts this light.
Gauge head drop in a PCB fixture
Lowers a height-sensing probe onto connector rows over the 70 mm travel; trim the approach with the stop screw so the probe lands consistently.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X70-40S the Right Cylinder?
This is the smallest bore in the MA family, so step up rather than down: the MAJ20 pushes 157.0 N and the MAJ25 reaches 245.3 N at 0.5 MPa if 100.5 N leaves no headroom. Remember the stop screw is a mechanical end stop for the extend stroke, not a mid-stroke brake - with air lost the piston still drifts, so block the load externally where it must stay put. FA flange and LB foot plates, plus I and Y rod knuckles, cover the common fixings, and the magnet is already in the piston. Guide the load externally; the 6 mm rod forgives little side thrust.
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 MAJ16X70-40S FAQ
At 0.5 MPa the 16 mm bore pushes 100.5 N and pulls 86.4 N; at 0.7 MPa it pushes 140.7 N and pulls 120.9 N. The theoretical maximum at 1.0 MPa is 20.5 kgf. Supply pressure runs 0.15-1.0 MPa (22-145 psi) and rod speed 30-800 mm/s.
No. The MAJ16X70-40S carries fixed anti-impact bumper pads that soften the arrival at each stroke end but offer no adjustment - for tunable air cushioning AirTAC points to the MACJ family. The stainless round barrel, riveted covers and hard-chrome rod are the build features to rely on.
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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