Need Help Choosing a Air (Pneumatic) Torque Screwdriver?

Knowing the difference between the full auto and slip/cushion clutch air screwdrivers is essential when choosing the correct screwdriver for an assembly application. Full auto clutch screwdrivers are ideal for applications requiring precise repeatable torque. These screwdrivers shut off completely once the easy to set torque setting is reached. For applications that do not require precision repeatable torque slip/cushion clutch screwdrivers are an economical alternative. The clutch on these screwdrivers slip once the easy to set torque setting is reached. The operator must release the screwdrivers lever to stop the bit of the screwdriver from slipping.

Air screwdrivers come in three basic designs; inline/straight, pistol and angle grips. Inline/straight screwdrivers are ideal for assembly applications where the operator is fastening screws vertically. These screwdrivers have comfortably ergonomic grips that are ideal for straight up and down fastening. For those applications where the operator is fastening screws in a horizontal direction, pistol screwdrivers are ideal. Pistol screwdrivers allow the operator to maintain a comfortable and ergonomic grip on the screwdriver while fastening in the horizontal plain. Angle screwdrivers are ideal for applications with high torque or applications with limited access.

Lever Start Full Auto Shut Off Clutch (CL and SL series)

The CL and SL series are inline/straight lever start screwdrivers with a full auto shut off clutch. The lever start option allows the operator to engage the screwdriver by applying a slight amount of pressure on the trigger/lever. When the torque setting is reached, the full auto shut off clutch shuts the screwdriver off (the bit completely stops turning at this point). The torque setting is set by adjusting the Stepless Torque Adjuster at the tip of the screwdriver.

The CL series is our newest model, lever start, full auto shut off screwdriver and includes features such as an improved motor, “Top Wave” ergonomic grip, color torque system and much more. The SL series is our economically priced full featured lever start screwdriver. These screwdrivers are ideal for assembly applications that require exact repeatable torque where the operator is fastening screws in the vertical direction. (See Figure 1)

CL/SL Auto Air Lever Start Selection Guide Chart: This selection chart will help guide you in choosing the correct Full Auto Air Lever torque screwdriver for you assembly application. Screw sizes for both metric and standard screws are on the left side of the chart. Across the top are the Auto Air Lever Start CL/SL screwdrivers that we offer. Simply match your screw size to the CL/SL Air screwdriver.

Push to Start Full Auto Shut Off Clutch (CP and SP series)

The CP and SP series are push to start inline/straight screwdrivers with a full auto shut off clutch. The push to start option allows the operator to engage the screwdriver by applying a slight amount of pressure on the bit of the screwdriver. When the torque setting is reached, the full auto shut off clutch shuts the screwdriver off (the bit completely stops turning at this point). The torque setting is set by adjusting the Stepless Torque Adjuster at the tip of the screwdriver.

The CP series is our newest Air model push to start full auto shut off screwdriver and brings features like an improved motor, “Top Wave” ergonomic grip, color torque system and much more. The SP series is our economically priced full featured push to start screwdriver. These screwdrivers are ideal for assembly applications that require exact repeatable torque where the operator is fastening screws in the vertical direction. (see figure 2).

CP/SP Air Push to Start Selection Guide Chart: This selection chart will help guide you in choosing the correct Full Auto Air Push to Start torque screwdriver for your assembly application. Screw sizes for both metric and standard screws are found on the left side of the chart. Across the top are the Push to Start CP/SP screwdrivers that we offer. Simply match your screw size to the CP/SP Air screwdriver.

Lever Start Slip/Cushion Clutch
(CS Series)

The CS series is an inline/straight lever start Air screwdriver with a cushion/slip clutch. The lever start option allows the operator to engage the screwdriver by applying a slight amount of pressure on the trigger lever. When the torque setting is reached, the bit of the screwdrivers slips until the operator releases the lever. The torque setting is set by adjusting the Stepless Torque Adjuster at the tip of the screwdriver.

The CS series is our newest model lever start, cushion/slip screwdriver and includes features like an improved motor, “Top Wave” ergonomic grip, color torque system and much more. Common usages for this screwdriver are tapping screws and applications with less stringent torque control requirements. (See Figure 3)

CS Air Lever Start Selection Guide Chart: This selection chart will help guide you in choosing the correct Lever start cushion/slip clutch torque screwdriver for your assembly application. Screw sizes for both metric and standard screws are found on the left side of the chart. Across the top are the Lever Start CS Air screwdrivers that we offer. Simply match your screw size to the CS screwdriver.

Air Trigger Start Full Auto Shut Off Clutch Pistol Torque Screwdrivers (CPP series)

The CPP series are pistol screwdrivers with a full auto shut off clutch. The trigger start option allows the operator to engage the screwdriver by applying a slight amount of pressure on the trigger lever. When the torque setting is reached, the full auto shut clutch shuts the screwdriver off (the bit completely stops turning at this point). The torque setting is set by adjusting the Stepless Torque Adjuster at the tip of the screwdriver.

The CPP series Pistol start full auto shut off screwdriver and brings features like an improved motor, “Top Wave” ergonomic grip, color torque system and much more. (See Figure 4)

CPP Pistol Grip Selection Guide Chart: This selection chart will help guide you in choosing the correct Pistol Grip torque screwdriver for your assembly application. Screw sizes for both metric and standard screws are found on the left side of the chart. Across the top are the CPP Pistol grip screwdrivers that we offer.  Simply match your screw size to the CPP screwdriver.

Air Trigger Start Slip/Cushion Clutch Pistol Torque Screwdrivers (CCP series)

The CCP series are pistol screwdrivers with a slip/cushion clutch. The trigger start option allows the operator to engage the screwdriver by applying a slight amount of pressure on the trigger lever. When the torque setting is reached, the bit of the screwdriver slips until the operator releases the trigger. The torque setting is set by adjusting the Stepless Torque Adjuster at the tip of the screwdriver.

The CCP series is our newest model pistol slip/cushion screwdriver and includes features like an improved motor, “Top Wave” ergonomic grip, color torque system and much more. (See Figure 5).

CCP Pistol Grip Selection Guide Chart: This selection chart will help guide you in choosing the correct Pistol Grip torque screwdriver for your assembly application. Screw sizes for both metric and standard screws are found on the left side of the chart. Across the top are the CCP Pistol grip screwdrivers that we offer. Simply match your screw size to the CCP screwdriver.

Air Lever Start Full Auto Shut Off Angle Torque Screwdriver (CA series)

The CA series are lever start screwdrivers with a full auto shut off clutch. The lever start option allows the operator to engage the screwdriver by applying a slight amount of pressure on the lever of the screwdriver. When the torque setting is reached, the full auto shut off clutch shuts the screwdriver off (the bit completely stops turning at this point). The torque setting is set by adjusting the Stepless Torque Adjuster at the tip of the screwdriver.

The CA series is our newest model full auto shut off angle screwdriver and includes features like an improved motor, “Top Wave” ergonomic grip, color torque system and much more. These screwdrivers are ideal for assembly applications where the operator is fastening screws with extreme torques or applications with limited access (see figure 6).

CA Angle Screwdriver Selection Guide Chart: This selection chart will help guide you in choosing the correct angle torque screwdriver for your assembly application. Screw sizes for both metric and standard screws are found on the left side of the chart. Across the top are the Angle CA screwdrivers that we offer. Simply match your screw size to the Angle CA screwdriver.

Here are some simple rules when choosing an air torque screwdriver.

1. Only choose a slip/cushion cultch series screwdriver when you are sure that the fastener being used is made of a material that will not be damaged once the slip/cushion clutch engages.
2. Choose a full auto clutch screwdriver for assembly applications requiring precise repeatable torque.
3. Use Inline /straight screwdrivers for assembly applications where the operator is fastening screws vertically.
4. Use pistol screwdrivers for assembly applications where the operator is fastening screws horizontally.
   
5. Use angle screwdrivers for assembly applications with high torques or applications with limited access.
6. Push to start vs. lever start inline/straight screwdrivers – is an operator's preference. Both screwdrivers types are used for the same assembly jobs.
7. Air screwdrivers require less maintenance than electric screwdrivers.

Express Assembly Products
199 Rt 101 • P.O. Box 369 • Amherst, NH 03031
TOLL FREE 1-866-863-2302 • (603) 424-5590 • Fax: (603) 424-5595
email: info@expressassembly.com