Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X15-10S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X15-10S is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 15mm nominal stroke and a rear adjustable-stroke stopper — trim up to 10mm for a usable window of 5–15mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke15 mm
- Adjustable5–15 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable air cushion (both ends)
- 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 MBLCJ Adjustable Mini Cylinder MBLCJ20X15-10S
The AirTAC MBLCJ20X15-10S is a compact double-acting aluminum mini cylinder featuring a rear travel adjuster and an adjustable air cushion at both ends. It delivers 157 N of push force and 132 N of pull force at 0.5 MPa. The rear stopper lets you trim up to 10 mm of travel, creating a precise 5-15 mm usable stroke window for exact end-of-cycle positioning.
Unlike the standard MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable air deceleration to protect the end covers during faster movements. The -S code indicates a built-in magnet for position detection. The riveted rolling-packed barrel and 20 um hard-chrome plated carbon-steel rod ensure durability, while the G1/8 port and M8x1.25 rod-end thread match the 20 mm bore profile.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X15-10S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X15-10S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 15 mm |
| Adjustable window | 5–15 mm (trim 10 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 300 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X15-10S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×15 | Nominal stroke length in mm. |
| -10 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X15-10S Is Used
PCB Probe Testing
Provides exact 5-15 mm probe travel to test circuit pads without cracking the substrate, using the 157 N push force to ensure reliable contact.
Micro-Valve Actuation
Tunes the exact valve opening distance via the rear stopper, while the adjustable air cushion prevents harsh impacts on the valve body during rapid cycling.
Small Part Ejection
Pushes lightweight plastic components out of a machining center, relying on the built-in magnet and CMSG reed switch to confirm ejection.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X15-10S the Right Cylinder?
Choose this 20 mm bore if your application requires the 157 N push force at 0.5 MPa within a 5-15 mm stroke window. If you need less force, a smaller option is not available in this series. If your fixture requires more power, stepping up to the 25 mm bore provides 245 N of push force at 0.5 MPa. When replacing this unit, match the 20 mm bore, 15 mm stroke, 10 mm adjust code, PT thread, and the -S magnet.
Remember the rear adjuster is a travel stop, not a lock; it sets the end position but cannot hold a load under external force. Similarly, the adjustable cushion only decelerates the piston near the stroke ends. Mounting is limited to Basic, FA, or LB styles, as no back-cover or SDB pivot options exist for this series.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X15-10S FAQ
At 0.5 MPa, this double-acting cylinder provides 157 N of push force and 132 N of pull force. At 0.7 MPa, the push force increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa.
The adjustable stroke uses a rear screw to mechanically limit the travel, giving you a 5-15 mm usable window. The adjustable air cushion uses a separate needle valve to tune end-of-stroke deceleration. Neither feature locks the load in place; they only set the travel end and slow the piston.
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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