SMC Networks JAS-L Series Operation Manual

Doc. no. AS*-OMX0006

PRODUCT NAME

SPEED CONTROLLER WITH ONE-TOUCH FITTING

PUSH-LOCK TYPE / JAS SERIES

MODEL/ Series/ Product Number

JAS-L***-**

Contents

1．Safety Instructions 2 ～ 3

2．Specific Product Precautions 4 ～ 8
3．Application 9
4．Specifications 9
5．Malfunctions and Countermeasures 9
6．Construction 10

-1-

Caution

Caution indicates a hazard with a low level of risk which, if not avoided, could result

in minor or moderate injury.

Warning

Warning indicates a hazard with a medium level of risk which, if not avoided, could

result in death or serious injury.

Danger

Danger indicates a hazard with a high level of risk which, if not avoided, will result

in death or serious injury.

Warning

1. The compatibility of the product is the responsibility of the person who designs the equipment or
decides its specifications.

Since the product specified here is used under various operating conditions, its compatibility with specific
equipment must be decided by the person who designs the equipment or decides its specifications based on
necessary analysis and test results.
The expected performance and safety assurance of the equipment will be the responsibility of the person who
has determined its compatibility with the product.
This person should also continuously review all specifications of the product referring to its latest catalog
information, with a view to giving due consideration to any possibility of equipment failure when configuring the
equipment.

2. Only personnel with appropriate training should operate machinery and equipment.

The product specified here may become unsafe if handled incorrectly.
The assembly, operation and maintenance of machines or equipment including our products must be
performed by an operator who is appropriately trained and experienced.

3. Do not service or attempt to remove product and machinery/equipment until safety is confirmed.

1.The inspection and maintenance of machinery/equipment should only be performed after measures to

prevent falling or runaway of the driven objects have been confirmed.

2.When the product is to be removed, confirm that the safety measures as mentioned above are implemented
and the power from any appropriate source is cut, and read and understand the specific product precautions
of all relevant products carefully.

3. Before machinery/equipment is restarted, take measures to prevent unexpected operation and malfunction.

4. Contact SMC beforehand and take special consideration of safety measures if the product is to
be used in any of the following conditions.

1. Conditions and environments outside of the given specifications, or use outdoors or in a place exposed to
direct sunlight.

2. Installation on equipment in conjunction with atomic energy, railways, air navigation, space, shipping,

vehicles, military, medical treatment, combustion and recreation, or equipment in contact with food and
beverages, emergency stop circuits, clutch and brake circuits in press applications, safety equipment or
other applications unsuitable for the standard specifications described in the product catalog.

3. An application which could have negative effects on people, property, or animals requiring special safety

analysis.

4.Use in an interlock circuit, which requires the provision of double interlock for possible failure by using a

mechanical protective function, and periodical checks to confirm proper operation.

Speed Controller with One-touch Fitting

Push-Lock Type / JAS Series

Safety Instructions

These safety instructions are intended to prevent hazardous situations and/or equipment damage.
These instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.”
They are all important notes for safety and must be followed in addition to International Standards
(ISO/IEC)*1) , and other safety regulations.

*1) ISO 4414: Pneumatic fluid power -- General rules relating to systems.

ISO 4413: Hydraulic fluid power -- General rules relating to systems.
IEC 60204-1: Safety of machinery -- Electrical equipment of machines .(Part 1: General requirements)
ISO 10218: Manipulating industrial robots -Safety.

etc.

- 2 -

Caution

The product is provided for use in manufacturing industries.

The product herein described is basically provided for peaceful use in manufacturing industries.
If considering using the product in other industries, consult SMC beforehand and exchange specifications
or a contract if necessary.
If anything is unclear, contact your nearest sales branch.

1.The warranty period of the product is 1 year in service or 1.5 years after the product is
delivered,whichever is first.

Also, the product may have specified durability, running distance or replacement parts. Please
consult your nearest sales branch.

2. For any failure or damage reported within the warranty period which is clearly our responsibility,

a replacement product or necessary parts will be provided.

This limited warranty applies only to our product independently, and not to any other damage

incurred due to the failure of the product.

3. Prior to using SMC products, please read and understand the warranty terms and disclaimers

noted in the specified catalog for the particular products.

1.The use of SMC products with production equipment for the manufacture of weapons of mass

destruction(WMD) or any other weapon is strictly prohibited.

2.The exports of SMC products or technology from one country to another are governed by the
relevant security laws and regulation of the countries involved in the transaction. Prior to the
shipment of a SMC product to another country, assure that all local rules governing that export

are known and followed.

Caution

SMC products are not intended for use as instruments for legal metrology.

Measurement instruments that SMC manufactures or sells have not been qualified by type approval tests
relevant to the metrology (measurement) laws of each country.

Therefore, SMC products cannot be used for business or certification ordained by the metrology
(measurement) laws of each country.

The product is provided for use in manufacturing industries.
The product herein described is basically provided for peaceful use in manufacturing industries.
If considering using the product in other industries, consult SMC beforehand and exchange specifications
or a contract if necessary.

契約などを行ってください｡
The product is provided for use in manufacturing industries.
ここに掲載されている当社の製品は､主に製造業を目的とした平和利用向けに提供しています｡
If considering using the product in other industries, consult SMC beforehand and exchange specifications
or a contract if necessary.

契約などを行ってください｡

Speed Controller with One-touch Fitting

Push-Lock Type / JAS Series

Safety Instructions

Limited warranty and Disclaimer/Compliance Requirements

The product used is subject to the following “Limited warranty and Disclaimer” and “Compliance

Requirements”.

Read and accept them before using the product.

Limited warranty and Disclaimer

Compliance Requirements

- 3 -

2. Specific Product Precautions

Design/ Selection

Mounting

Design/ Selection

Warning

(1)Confirm the specifications.

Do not operate at pressures, temperatures, etc.,
beyond the range of specifications, as this can
cause damage or malfunction. (Refer to the
specifications.)
Please contact SMC when using a fluid other
than compressed air.
We do not guarantee against any damage if the
product is used outside of the specifications
range.

(2)Products mentioned in this catalog are not

designed for use as stop valves with zero air
leakage.

A certain amount of leakage is allowed in the
products specifications.
Tightening the needle forcibly to achieve zero
leakage may result in damage of contact face
stopper.

(3)Do not disassemble the product or make any

modifications, including additional
machining.

Doing so may cause human injury and/or an
accident.

(4)The flow rate characteristics for each

product are representative values.

The flow rate characteristics are characteristics
of each individual product. Actual values may
differ depending on the piping, circuitry, pressure
conditions, etc.
There will be no flow rate from the fully closed
position until 1 turns due to the product
characteristic, but this is not the problem.

(5)Sonic conductance and critical pressure

ratio values for products are representative
values.

For controlled flow direction values the needle is
fully open. For free flow direction values the
needle fully closed.

Warning

(6)Check if PTFE can be used in application.

PTFE powder (Polytetrafluoroethylene resin) is
included in the seal material of the male thread
type piping taper thread. Confirm that the use of
it will not cause any adverse effect on the system.
Please contact SMC if the Safety Data Sheet
(SDS) is required.

(7)Speed controllers are designed to control the

speed of the actuator.

Warning

(1)Operation Manual

Install the products and operate it only after
reading the operation Manual carefully and
understanding its contents. Also, keep the
Manual where it can be referred to as necessary.

(2)Ensure sufficient space for maintenance

activities.

When installing the products, allow access for
maintenance.

(3)Tighten threads with the proper tightening

torque.

When installing the products, follow the listed
proper torque.

(4)Screw the R screw into the Rc thread, the

NPT screw into the NPT thread and the G
screw into the G thread.

(5)After pushing the knob down to lock, confirm

that it is locked.

When the orange mark is visible, the speed

controller is unlocked. Confirm that the knob is
locked by pushing the knob in after adjusting
the cylinder speed. When the speed controller
is unlocked, the set flow may change.
If the knob is pulled with force while the speed
controller is unlocked, it may result in breakage.
When it is unlocked, do not pull the knob out
with force.

- 4 -

Mounting

Mounting

Warning

(6)Check the degree of rotation of the needle

valve.

The Products in this catalog are retainer type so

that the needle is not removed completely.
Over rotation will cause damage.

(7)Do not use tools such as pliers to rotate the

knob.

It can cause idle rotation of the knob or damage.

(8)Verify the air flow direction.

Mounting backward is dangerous, because the

speed adjustment needle will not work and the
actuator may lurch suddenly.

(9)Adjust the speed by opening the needle

slowly from the fully closed state.

Loose needle valves may cause unexpected

sudden actuator extension.
When a needle valve is turned clockwise, it is
closed and cylinder speed decreases. When a
needle valve is turned counterclockwise, it is
open and cylinder speed increases.
Unlock the knob before adjusting the needle
valve with a flat blade screwdriver. Excessive
torque may break the needle valve.
Refer to the operation applicable torque below.

Warning

(12) Insert the hexagon wrench into the end of

the hexagonal hole of the stud when
removing and mounting the speed
controller.

Do not apply torque at other points as the

product may be damaged. Rotate Body A
manually for positioning after installation.

Refer to the applicable dimension of the
hexagon wrench.

(13) Do not use this product in the operating

condition where moment loads will be
constantly applied to Body A.

Body A and the fitting section may be
damaged.

(14)This product has a stopper for fully close in

rotating direction.

Excess torque may break the stopper.
Table below shows the maximum allowable
torque of the knob.

(10)Do not apply excessive force or shock to

the body or fittings with an impact tool.

It can cause damage or air leakage.

(11)For handling One-touch fittings, refer to the

Fittings and Tubing Precautions.

Caution

(1)For M3, M5, 10-32UNF
①Tightening method

For M3

First, tighten it by hand, then give it an additional
1/6 turn to 1/4 turn with a hexagon wrench.
Refer to Table below for reference.

- 5 -

Piping Threads with Sealant

Piping

Mounting

Caution

For M5,10-32UNF

First, tighten it by hand, then give it an additional
1/6 turn to 1/4 turn with a hexagon wrench.
Refer to Table below for reference.

Note) Excessive tightening may damage the

thread portion or deform the gasket and
cause air leakage.

If the screw is too shallowly screwed in, it

may come loose or air may leak.

②Chamfered area for female thread

In compliance with ISO 16030 (air pressure fluid
dynamics－connection－ports and stud ends),
the chamfered dimensions shown in the table
below are recommended.

(2)For R, NPT, G thread
①Tightening method

When tightening the stud, insert an appropriate
hexagon wrench to the hexagonal hole after
tightening it by hand.
Refer to Table below for reference.

②Chamfered area of female thread

By chamfering as shown in the table below,
machining of threads is easier and effective for
burr prevention.

*G thread (face seal) complies with
ISO16030-2001.

Caution

(1)If the fitting is tightened with excessive

torque, a large amount of sealant will seep
out. Remove the excess sealant.

(2)Insufficient tightening may loosen the

threads, or cause air leakage.

(3)Reuse

①Normally, fittings with a sealant can be reused

2 to 3 times.

②To prevent air leakage through the sealant,

remove any loose sealant stuck to the fitting
by blowing air over the threaded portion.

③ If the sealant no longer provides effective

sealing, wrap sealing tape over the sealant
before reusing. Do not use the sealant in any
form other than a tape type.

(4)Once the fitting has been tightened,

backing it out to its original position often
causes the sealant to become defective. Air
leakage will occur

(5)Use R external threads with Rc internal

threads and NPT external threads with NPT
internal threads.

Caution

(1)Refer to the Fittings & Tubing Precautions

for handing One-touch fittings.

(2) Preparation before piping

Before piping is connected, it should be
thoroughly blown out with air (flushing) or
washed to remove chips, cutting oil and other
debris from inside the pipe.

(3)Winding of sealant tape

When screwing together pipes and fittings, etc.,
be certain that chips from the pipe threads and
sealing material do not get inside the pipe.
Also, when the sealant tape is used, leave
approx. 1 thread ridges exposed at the end of the
threads.

- 6 -

Air Supply

Precautions for One-Touch Tube Fittings

Mounting/ Piping

Recommended Piping Conditions

Unit：mm

tubing

size

Mounting pitch A

Straight-line

Pipe length

Nylon

tube

Soft nylon

tube

Polyurethane

tube

φ 3.2、φ 1/8”

44 or more

35 or more

25 or more

16 or more

φ 4、φ 5/32”

56 or more

44 or more

26 or more

20 or more

φ 3/16”

67 or more

52 or more

38 or more

24 or more

φ 6

84 or more

66 or more

39 or more

30 or more

φ 1/4”

89 or more

70 or more

57 or more

32 or more

Caution

(1)Connection and disconnection of tube from

one-touch fitting

① Installation of tube

1)Cut the tube perpendicularly, being careful not
to damage the external surface. Use an SMC
tube cutter TK-1, 2, 3. Do not cut the tubing with
pliers, nippers, scissors, etc., otherwise the
tubing will be deformed and problems may
result.

2)The outside diameter of the polyurethane tubing
swells when internal pressure is applied to it.
Therefore, it may be impossible to re-insert the
tubing into One-touch fittings. Check the tubing
outside diameter, and when the accuracy of the
outside diameter is +0.07mm or larger for φ2,
and +0.15mm or larger for other sizes, re-insert
it into the One-touch fitting without cutting the
tube.When the tubing is re-inserted into the
One-touch fitting, confirm that the tubing goes
through the release button smoothly.

3)Grasp the tubing, and slowly push it straight
into the One-touch fitting until it comes to a
stop.

4)Pull the tubing back gently to make sure it has a
positive seal. Insufficient installation may cause
air to leak or the tubing to release.

②Removal of the tube

1)Push the release button flange evenly and
sufficiently to release the tube.Do not push in the
tubing before pressing the release button.

2)Pull out the tubing while keeping the release
button depressed. If the release button is not
held down sufficiently, the tubing cannot be
withdrawn.

3)To reuse the tubing, remove the previously
lodged portion of the tubing.If the lodged portion
is left on without being removed, it may result in
air leakage and make the removal of the tubing
difficult.

(2)Connection of the metal rod accessories

Do not use tube, resin plug, reducer, etc. after
connecting a fitting with a metal rod (KC series,
etc.) to a One-touch fitting. This can cause the
disconnection of tube.

(3)When mounting the tube, resin plug or metal

rod, do not press the release button.

Do not press the release button unnecessarily
before mounting tubing, resin plugs and metal
rods. This can cause the disconnection of tube.

(1)When connecting piping to the

One-touch fitting, use a pipe length
with sufficient margin, in
accordance with the piping
conditions shown in Figure 1.

Also, when using a tying band, etc.,
to bind the piping together, make
sure that external force does not
come to bear on the fitting.

(see Figure 2)

Warning

(1)Type of fluids

Please consult with SMC when using the
product in applications other than compressed
air.

(2)When there is a large amount of drainage

Compressed air containing a large amount of

drainage can cause the malfunction of
pneumatic equipment.An air dryer or water
separator should be installed upstream from
filters.

(3)Drain flushing

If condensation in the drain bowl is not emptied

on a regular basis,the bowl will overflow and
allow the condensation to enter the compressed
air lines.This causes the malfunction of
pneumatic equipment.If the drain bowl is difficult
to check and remove, the installation of a drain

bowl with an auto drain option is recommended.
For compressed air quality,refer to SMC catalog
"Compressed Air Purification System".

- 7 -

Maintenance

Operating environment

Air Supply

Warning

(4)Use clean air

Do not use compressed air that contains
chemicals, synthetic oils that include organic
solvents, salt, corrosive gases, etc., as it can
cause damage or malfunction.

Caution

(1)Install an air filter.

Install an air filter upstream near the valve.
Select an air filter with a filtration size of 5μm or
smaller.

(2)Take measures to ensure air quality, such as

by installing an aftercooler, air dryer, or water
separator.

Compressed air that contains a large amount of
drainage can cause the malfunction of
pneumatic equipment,such as flow control
equipment.Therefore,take appropriate measures
to ensure air quality, such as by providing an
aftercooler, air dryer, or water separator.

(3)Ensure that the fluid and ambient

temperatures are within the specified range.

If the fluid temperature is 5 ℃ or less,the
moisture in the circuit could freeze,causing
damage to the seals or leading to equipment
malfunction. Therefore, take appropriate
measures to prevent freezing.
For compressed air quality,refer to SMC catalog
"Compressed Air Purification System".

Warning

(1)Do not use in an atmosphere containing

corrosive gases, chemicals, sea water, water,
water steam, or where there is direct contact
with any of these.

(2)Do not expose the product to direct sunlight

for an extended period of time.

(3)Do not use in a place subject to heavy

vibration and/or shock.

(4)Do not mount the product in locations where

it is exposed to radiant heat.

Warning

(1)Perform maintenance and inspection

according to the procedures indicated in the
operation manual.

If handled improperly, malfunction or damage of
machinery and equipment may occur.

(2)Maintenance work
If handled improperly, compressed air can be

dangerous. Assembly,handling,repair and

element replacement of pneumatic systems

should be performed by a knowledgeable and

experienced person.

(3)Drain flushing

Remove drainage from air filters regularly.

(4)Removal of equipment, and supply/exhaust

of compressed air

Before components are removed, first confirm

that measures are in place to prevent

workpieces from dropping, run-away equipment,

etc. Then, Cut the supply pressure and electric

power, and exhaust all compressed air from the

system using the residual pressure release

function.

When machinery is restarted, proceed with

caution after confirming that appropriate

measures are in place to prevent sudden

movement.

- 8 -

3. Application

Fluid

Air

Proof pressure

1.05 MPa

Maximum operating pressure

0.7 MPa

Minimum operating pressure

0.05 MPa

Ambient and fluid temperature

-5 to 60oC (No freezing)

Applicable tube materials

(note 1)

Nylon, soft nylon, polyurethane, FEP, PFA

Trouble

Possible causes

Countermeasure

Speed(flow) cannot
be adjusted.

Dust inside.

Fully open the needle and apply air blow from
the free flow side.
If the problem is not solved even after air blow,
install an air filter to the piping, and replace the
product with a new one.

Air leaks from the
One-touch fitting.
Or the tubing
disconnects.

Tubing has been cut using
pliers or nipper.

Use tube cutters.

The tolerance of the outside
diameter of the tubing is
outside of the specification.

If tubings made by manufacturers other than
SMC are used, check the accuracy of the
tubing’s outside diameter.
Nylon tube: Within +/-0.1 mm
Soft nylon tube: Within +/-0.1 mm
Polyurethane tube: Within -0.2 to +0.15 mm

This product is designed to control the speed of a pneumatic actuator.

4.Specifications

Note1: Pay attention to the maximum operating pressure for soft nylon and polyurethane.

5.Troubleshooting

- 9 -

6.Construction

Com ponent Par t s

No. Description Material Note

1 Body A PBT

2 Body B PBT

3 Needle PBT

4 Knob POM

5 Stopper Stainless steel

6 Needle guide Brass Electroless nickel plated

7 Disk seal HNBR

8 Stud Brass Electroless nickel plated

9 O-ring NBR

10 O-ring NBR

11 O-ring NBR

12 Cassette -

13 Seal NBR

14 O-ring NBR Only Meter-in

15 Gasket NBR/Stainless steel

16 Seal NBR

⑮

Meter-in

⑯

- 10 -

Revision history

S

4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021 JAPAN
Tel: + 81 3 5207 8249 Fax: [phone]
URL https://www.smcworld.com

Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer.
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