Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X400-40S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X400-40S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø16mm bore and 400mm 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
- Stroke400 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 MAJ16X400-40S
For light loads on a long travel, the MAJ16X400-40S reaches 400 mm with a 100.5 N push at 0.5 MPa (20.5 kgf theoretical maximum at 1.0 MPa). Its 40 mm adjustable window lets maintenance move the extend stop anywhere inside it without swapping cylinders, and AirTAC builds the stroke to order because standard bore-16 strokes end at 300 mm.
Sensing comes free of ordering hassle: the magnet is standard, so CMSG, DMSG and EMSG switches attach anywhere on the barrel for position confirmation. Porting is a single M5x0.8 per cover, and the riveted stainless body with hard-chrome rod stands up to splash zones that ruin painted minis. Budget about 60 N for the actual job if you want margin on the 100.5 N rating - and remember the stop screw is a position setter, not a load lock: the rod can drift if air is lost.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X400-40S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X400-40S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 400 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 MAJ16X400-40S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×400 | 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 MAJ16X400-40S Is Used
Appliance panel locating pin
Raising a locating pin under refrigerator door panels on an assembly line; the 40 mm window tunes pin height when the panel model changes.
Parcel sorter diverter finger
Extending a lightweight diverter finger across a narrow parcel lane; the 400 mm reach suits deep chute sections on small sorters.
Glue nozzle retraction
Lifting a dispensing nozzle clear of a carton after the bead is laid; bumper pads soften the retract stop even at the 800 mm/s speed ceiling.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X400-40S the Right Cylinder?
Check two numbers before ordering: your load (the 100.5 N push at 0.5 MPa supports roughly 60 N of real work) and your stroke - 400 mm is made to order because standard bore-16 strokes stop at 300 mm. For heavier duties move to bore 20 at 157 N or bore 40 at 628.3 N push, both in the same MA format. Fit an LB foot or FA flange to support the long barrel, and never let the payload side-load the 6 mm chrome rod.
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 MAJ16X400-40S FAQ
Push is 100.5 N at 0.5 MPa and 140.7 N at 0.7 MPa; pull is 86.4 N at 0.5 MPa and 120.9 N at 0.7 MPa; the theoretical ceiling is 20.5 kgf at 1.0 MPa. Operating pressure runs 0.15-1.0 MPa (22-145 psi) with 1.5 MPa (215 psi) proof.
Yes. Every MA-series cylinder, this one included, ships with the piston magnet built in, so CMSG, DMSG or EMSG switches clamp straight onto the stainless barrel wherever a position signal is needed - no special-order piston required.
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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