Cleco 520009 Pnuematic Spring Balance Arm | PBA-12-AH | Parallel Arm | 12" Arm Extension

When a lightweight pneumatic screwdriver or nutrunner needs controlled positioning at the workstation, the Cleco 520009 PBA-12-AH Pneumatic Spring Balance Arm helps support the tool while reacting torque back through the arm instead of the operator’s wrist. This parallel arm configuration uses a spring balance mechanism to suspend tools up to 5 lbs., while the 10 ft-lbs. torque capacity helps manage low-torque assembly work where repeatable tool placement and reduced handling strain matter.

The PBA-12-AH features a 12" arm extension with an adjustable height post, giving assembly stations a compact support arm for seated benches, repair cells, and production fixtures. The parallel arm layout keeps the mounted tool aligned through its working envelope, which is useful when operators repeatedly approach the same fastener location or work across a defined assembly area.

Type: Spring Balance Arm | Model: PBA-12-AH | Ordering Number: 520009 | Arm: Parallel | Mount: Adjustable Height Post | Dimension A: 12" / 305 mm | Dimension B: 12" / 305 mm | Dimension D: 30" / 762 mm | Tool Weight Capacity: 5 lbs. / 2.3 kg | Torque Capacity: 10 ft-lbs. / 13.5 Nm

Features:

• Parallel balance arm configuration supports consistent tool positioning across repetitive assembly tasks.
• Spring balance design helps carry tool weight so operators are not lifting the full tool load during each cycle.
• Adjustable height post mount allows the arm height to be set for the bench, fixture, or operator position.
• 12" A dimension and 12" B dimension provide a compact reach profile for workstation layouts with limited space.
• 5 lb. tool weight capacity supports compatible lightweight Cleco screwdrivers, nutrunners, and assembly tools.
• 10 ft-lbs. torque capacity helps absorb reaction torque from low-torque fastening applications.
• Includes standard parallel tool holder / U-bolt style tool clamp, part number 201675, with maximum 1.91" diameter clamp capacity.
• 4" diameter base mount with 4-hole mounting pattern; optional wall mount kit 201600PT is available separately.

Made in USA:

Applications:

• Assembly workstations — supporting lightweight pneumatic screwdrivers or nutrunners during repeated fastening cycles.
• Electronics and appliance assembly — reducing tool handling effort on bench-mounted production operations.
• Automotive and off-road equipment assembly — positioning tools for low-torque fastening on subassemblies and fixture-based work.
• Industrial maintenance benches — keeping frequently used pneumatic tools suspended, organized, and ready for use.
• Quality-sensitive fastening stations — helping operators maintain a more controlled approach angle to the workpiece.

FAQs:

• Q: What does the PBA-12-AH model code mean?
  A: PBA identifies a spring, parallel balance arm. The 12 refers to the arm extension, and AH means adjustable height mounting.
• Q: How much tool weight can this Cleco balance arm support?
  A: The 520009 PBA-12-AH is rated for tools up to 5 lbs. / 2.3 kg. Always confirm the complete tool, bit, socket, and attached accessory weight before installation.
• Q: What torque can this arm react?
  A: This spring balance arm is rated for 10 ft-lbs. / 13.5 Nm of torque capacity. Select a higher-capacity arm if the tool’s fastening torque exceeds that rating.
• Q: Is this a single arm or a parallel arm?
  A: This is a parallel arm model. Parallel arms are commonly used when the tool needs to stay aligned and controlled through a defined workstation envelope.
• Q: Does this product include the tool shown in application images?
  A: No. The balance arm supports compatible tools, but pneumatic tools are sold separately unless otherwise stated on the order.

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Need help selecting the correct Cleco Balance Arms for your application? Please call (800) 608-5210 or email info@intlairtool.com