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Extension Arm

Extension arm pneumatic Balancer Series

KEAA2000 - Dual Bridge
KEAA2000 - Dual bridge
KEAA2500 - Single Bridge
KEAA2500 - Single bridge

Extension arm pneumatic balancer

P/N: KEAA2000 / KEAA2500

The Knight Global KEAA2000 and KEAA2500 extension arm pneumatic balancer series lets operators reach beyond the working envelope of the overhead rail system within a workstation. An air balancer is mounted on the extension arm to provide controlled lifting and lowering of the load.

The KEAA2000 and KEAA2500 travel inside Knight Global RAD4110, RAD6110 or RAD7510 aluminum rail systems. Two main versions are available:

KEAA2500 - Single Bridge: suited to light and medium duty applications, with a compact, lightweight structure.
KEAA2000 - Dual Bridge: higher load capacity and greater stability when handling heavy and offset loads.

When selecting an air balancer, FULLSHARP recommends sizing the working load at 80% of rated capacity to allow for fluctuations in plant air pressure and ensure stable operation. Balancers are rated at a standard pressure of 100 psi [6.8 bar].

Actual lifting capacity formula: Example - plant air 60 psi, 350 lbs balancer, 80% load factor → (60/100) x 350 lbs = 210 lbs x 0.80 = 168 lbs actual working capacity.

Features & benefits

Features

  • Single bridge or dual bridge configuration.
  • Travels inside Knight RAD4110, RAD6110 or RAD7510 rail systems.
  • CE Compliant.
  • Wide range of control configurations.
  • Angle adjustment in 10° increments (10° up / 10° down).
  • Horizontal adjustment up to 6.8 in. [172 mm] in 2.3 in. increments.
  • Requires clean, dry, non-lubricated air.
  • Maximum balancing capacity: up to 700 lbs [317 kg].
  • Chain configuration.

Benefits

  • Extends the working area of a standard balancer.
  • Reaches beyond the limits of the overhead rail system.
  • Allows 360° rotation.
  • Controlled lifting and lowering with drop protection.
  • Reduces operator fatigue and increases productivity.
  • Integrates easily with existing Knight rail systems.
  • Controls sold separately (Up/Down or Balance).
  • Easily customized for specific applications.

Maintenance recommendation: Knight Global recommends a food grade, high pressure, anti-wear penetrating lubricant — Lubriplate® 1241 for wire rope, or SAE 50-90 EP machine/gear oil for load chain.

Specifications - KEAA2500 (Single bridge)

Part numberCapacity (lbs / kg)Stroke (in / mm)Balancer length (in / mm)
KEAA2500-200200 lbs [90 kg]110 in [2,794 mm]16.3 in [414 mm]
KEAA2500-350350 lbs [158 kg]67 in [1,702 mm]16.3 in [414 mm]
KEAA2500-500500 lbs [226 kg]80 in [2,032 mm]21.5 in [546 mm]
KEAA2500-700700 lbs [317 kg]50 in [1,270 mm]21.5 in [546 mm]

Specifications - KEAA2000 (Dual bridge)

Part numberCapacity (lbs / kg)Stroke (in / mm)Balancer length (in / mm)
KEAA2000-200200 lbs [90 kg]110 in [2,794 mm]16.3 in [414 mm]
KEAA2000-350350 lbs [158 kg]67 in [1,702 mm]16.3 in [414 mm]
KEAA2000-500500 lbs [226 kg]80 in [2,032 mm]21.5 in [546 mm]
KEAA2000-700700 lbs [317 kg]50 in [1,270 mm]21.5 in [546 mm]

Capacity and stroke are measured at a standard pressure of 100 psi [6.8 bar]. An actual working capacity of 80% of rated capacity is recommended to compensate for plant air pressure fluctuations.

Real-world application overviewReal-world application overview Hood Lift Assist Extension ArmHood Lift Assist Extension Arm Installing the Manifold & Control HandleInstalling the Manifold & Control Handle Installing the Safety Cable Set for the Air BalancerInstalling the Safety Cable Set for the Air Balancer Installing the Air Balancer onto the Rail SystemInstalling the Air Balancer onto the Rail System Installing the Trolley for the BalancerInstalling the Trolley for the Balancer Core Casting Lift AssistCore Casting Lift Assist

Typical applications

Automotive

  • Hood assembly on the production line.
  • Lifting and positioning engines and transmissions.
  • Seat and windshield installation.
  • Moving frames and chassis.
  • Assembling parts beyond the reach of the rail.

Other industries

  • Lifting and transferring casting molds and cores.
  • Unloading products at the end of conveyors.
  • Packing and palletizing.
  • Assembling large electrical equipment.
  • Handling heavy machining blanks.

Compatible accessories

General accessories

Precision Chain Wear Gauge<br /> Measures 4mm & 5mm chains | 0,39 kg
Precision chain wear gauge
For 4 mm & 5 mm chain | 0.39 kgKSAA1003
Safety Chain Joint<br /> 360° rotation, connects to slotted base | 1,23 kg
Safety chain coupler
360° swivel, bolt-hole base connection | 1.23 kgBPA2410
Quick Connect Joint<br /> Max load 700 lbs [318 kg]
Quick Connect coupler
Max. load 700 lbs [318 kg]BPA2035
Móc xích Pneumatic Balancer<br /> Crosby® Bullard, xoay 360° | 1,08 kg
Pneumatic Balancer chain hook
Crosby® Bullard, 360° swivel | 1.08 kgBPA2113

Load trolleys

Yoke Load Trolley - RAD4110<br /> Max load: 1.100 lbs [499 kg]
Yoke load trolley - RAD4110
Max. load: 1,100 lbs [499 kg]MRTA4009
Low Profile Trolley - RAD6110<br /> Max load: 1.600 lbs [725 kg]
Low profile trolley - RAD6110
Max. load: 1,600 lbs [725 kg]MRTA6123
Yoke Load Trolley - RAD7510<br /> Max load: 3.000 lbs [1.360 kg]
Yoke load trolley - RAD7510
Max. load: 3,000 lbs [1,360 kg]MRTA7723

Safety cables

Standard Safety Cable Set<br /> Ø 6 mm, length 1,8 m
Standard safety cable kit
Ø 6 mm, 1.8 m longRWA4133
Eye Bolt Safety Cable Set<br /> Ø 6 mm, length 3 m
Safety cable kit with eye bolt
Ø 6 mm, 3 m longFDA4133
Oval Sleeve Safety Cable Set<br /> Ø 6 mm, length 3 m | 0,91 kg
Oval sleeve safety cable kit
Ø 6 mm, 3 m long | 0.91 kgNICORWA4133

Pneumatic controls

Single Balancer Control Module<br /> Max load 150 lbs [68 kg]
Single balance control module
Max. load 150 lbs [68 kg]BCS2018
Single Air-Relief Balancer Module<br /> BCS2090: < 250 lbs / BCS2322: < 500 lbs
Single balance module with air bleed
BCS2090: < 250 lbs / BCS2322: < 500 lbsBCS2090 / BCS2322
Feather-Touch Control Handle<br /> Max load 100 lbs [45 kg] @ 80 psi
Feather-Touch control handle
Max. load 100 lbs [45 kg] @ 80 psiBCS2213 / BCS2214
Dual Balancer Control Handle<br /> 2 different load modes, ergonomic grip
Dual balance control handle
2 load modes, ergonomic gripBCS2215 / BCS2323
Up/Down Tandem Control Handle<br /> 2 push buttons, coiled / straight hose 3 m
Up/Down Tandem control handle
2 push buttons, 3 m coiled / straight hoseBCS2326 / BCS3330
Up/Down + Manifold Control Handle<br /> Variable speed, coiled / straight hose 3 m
Up/Down control handle + Manifold
Variable speed, 3 m coiled / straight hoseBCS3017 / BCS3320

Technical documents

General catalogs

Spec sheets

CAD drawings

Installation & troubleshooting guides

FULL-SHARP AUTOMATIZED VN (FULLSHARP)
Authorized distributor of Knight Global pneumatic arms in Vietnam
For more details on the KEAA2000 / KEAA2500, please contact a FULLSHARP representative.