Cleco 520012 Pneumatic Spring Balance Arm | PBA-18-AH | Parallel Arm | 18" Arm Extension

When a lightweight pneumatic screwdriver or nutrunner needs more working reach at the bench, the Cleco 520012 PBA-18-AH Pneumatic Spring Balance Arm helps support the tool while managing reaction torque through the arm instead of the operator’s hand and wrist. This parallel arm spring balance model is rated for tools up to 5 lbs., with a 10 ft-lbs. torque capacity for low-torque assembly work, where repeatable tool control and reduced handling effort are important.

The PBA-18-AH combines a 12" primary arm dimension with an 18" arm extension, giving operators a larger work envelope than the 12" extension version while still fitting compact production cells. Its adjustable height post allows the arm position to be matched to the operator, bench, fixture, or tool approach angle for cleaner tool presentation during repetitive fastening operations.

Type: Spring Balance Arm | Model: PBA-18-AH | Ordering Number: 520012 | Arm: Parallel | Mount: Adjustable Height Post | Dimension A: 12" / 305 mm | Dimension B: 18" / 457 mm | Dimension D: 30" / 762 mm | Tool Weight Capacity: 5 lbs. / 2.3 kg | Torque Capacity: 10 ft-lbs. / 13.5 Nm

Features:

• Parallel arm configuration supports controlled tool positioning across repetitive fastening locations.
• Spring balance design helps offset tool weight so operators are not lifting the full tool load through every cycle.
• 18" arm extension provides added reach for benches, fixtures, and workstations that require a broader operating envelope.
• Adjustable height post mounting allows the arm height to be set for the operator, tool, and work surface.
• 5 lb. tool weight capacity supports compatible lightweight Cleco screwdrivers, nutrunners, and assembly tools.
• 10 ft-lbs. torque capacity helps control reaction torque in low-torque pneumatic fastening applications.
• Includes standard U-bolt 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:

• Production assembly benches — supporting lightweight pneumatic fastening tools during repeated screw or nut rundown tasks.
• Automotive and equipment subassembly — positioning tools over fixtures where operators work across a defined fastening pattern.
• Appliance and electronics manufacturing — helping reduce tool handling strain on low-torque assembly operations.
• Industrial MRO workstations — keeping frequently used pneumatic tools suspended, organized, and ready for repeated use.
• Quality-focused fastening cells — helping maintain consistent tool alignment when operators approach the same work area throughout the shift.

FAQs:

• Q: What is the difference between the PBA-18-AH and the shorter PBA-12-AH?
  A: The PBA-18-AH has an 18" B dimension, while the PBA-12-AH has a 12" B dimension. The longer extension gives the operator more reach across the workstation while keeping the same 5 lb. tool weight capacity and 10 ft-lbs. torque capacity.
• Q: What does “AH” mean in PBA-18-AH?
  A: AH stands for adjustable height. This version uses an adjustable height post mount so the arm can be positioned for the bench height, operator stance, and tool approach.
• Q: How much tool weight can this Cleco balance arm support?
  A: The 520012 PBA-18-AH is rated for tools up to 5 lbs. / 2.3 kg. Check the full working weight of the tool, bit, socket, and any attached accessories before selecting the arm.
• Q: What torque range is this arm suitable for?
  A: This model is rated for 10 ft-lbs. / 13.5 Nm of torque capacity. Use a higher-capacity torque arm if the fastening tool or application exceeds that rating.
• Q: Are the pneumatic tool and accessories included?
  A: No. The balance arm includes the standard U-bolt tool clamp listed by the manufacturer, but pneumatic tools and application-specific accessories are sold separately unless otherwise stated.

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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