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Overview
Knight extension arms travel inside RAD aluminum rail and let the operator reach beyond the working limits of an overhead rail system. Angular and horizontal adjustment in fixed steps.
Knight’s Extension Arm Pneumatic Balancer Arm Series enables the operator to extend beyond the working limits of an overhead rail system within a workstation. Our Pneumatic Balancer mounts to the extension arm allowing for a controlled lifting and lowering of loads. The KEAA2000 and KEAA2500 arms travel inside Knight’s RAD4110, RAD6110, or RAD7510 Aluminum Series Rail Systems.
When specifying a pneumatic balancer, it is recommended for working loads to use 80% of the operating capacity for lifting applications. This approach compensates for the normal fluctuations within the plant compressed air supply. Working loads include part weight and handling device weight. Balancers are rated at 100 psi [6.8bar] therefore use the following example to calculate exact operating capability.
Formula for pneumatic balancer sizing: Example: plant air 60 psi, 350 air balancer, 80% load capability (0.60 air supply x 350 lbs. = 210 x .80 = 168 lbs. operating capability).
Contact a Knight representative for more information on our Extension Arm Pneumatic Balancer Arm Series.
General Information
Features
- Single or Dual Bridge Configuration.
- Travels inside Knight’s RAD4110, RAD6110, or RAD7510 Series Rail.
- CE Compliant.
- Various Control Configurations.
- Angular Adjustment in 10° increments (10° UP / 10° DOWN).
- Horizontal Adjustments: Up to 6.8 in. [172mm]. in 2.3 in. Increments.
- Requires Non-Lubricated Clean/Dry Air.
- Max Balancing Capacity: Up to 700 lbs. [317kg].
- Standard Travel: See Specifications Tab.
Note: Knight recommends the use of high performance, extreme pressure, anti-wear food grade penetrating oil (Lubriplate® 1241 Recommended) that penetrates and lubricates cable. For chain (SAE 50 to 90 EP oil or equivalent machine/gear oil) is Recommended.
Benefits
- Chain Configuration.
- Expands the reach work area of a typical balancer.
- Allows for 360° rotation.
- Controls Sold Separately (Up/ Down or Balance).
Single and Dual Bridge Extension Arm Specifications
Single Bridge Extension Arm
|
Part
Number |
Capacity
lbs [kg] |
Travel
in. [mm] |
Balancer Length
in. [mm] |
|
KEAA2500-200
|
200 [90]
|
110 [2,794]
|
16.3 [414]
|
|
KEAA2500-350
|
350 [158]
|
67 [1,702]
|
16.3 [414]
|
|
KEAA2500-500
|
500 [226]
|
80 [2,032]
|
21.5 [546]
|
|
KEAA2500-700
|
700 [317]
|
50 [1,270]
|
21.5 [546]
|
Dual Bridge Extension Arm
|
Part
Number |
Capacity
lbs [kg] |
Travel
in. [mm] |
Balancer Length
in. [mm] |
|
KEAA2000-200
|
200 [90]
|
110 [2,794]
|
16.3 [414]
|
|
KEAA2000-350
|
350 [158]
|
67 [1,702]
|
16.3 [414]
|
|
KEAA2000-500
|
500 [226]
|
80 [2,032]
|
21.5 [546]
|
|
KEAA2000-700
|
700 [317]
|
50 [1,270]
|
21.5 [546]
|
Videos
*Applications Compilation
*Extension Arm – Hood Lift Assist
Air Balancer Manifold & Control Handle Installation
Air Balancer Safety Cable Kit Installation
Air Balancer to Rail Installation
Air Balancer Trolley Installation
Core Casting Lift Assist
Accessories
General 4
- Weight
- 0.87 lbs [0.39kg]
Details
The KSAA1003 Precision Chain Wear Gauge is used to measure the wear on Knight servo hoists and pneumatic balancers 4mm/5mm galvanized chain.To view the instructional video, click here or visit Knight's Youtube page.
- Steel Construction
- Measures Knight 4mm & 5mm Galvanized Chain Wear.
- Weight
- 2.7 lbs. [1.23kg]
Details
Knight Global's BPA2410 Safety Chain Shackle connects Air Balancers quickly and securely to fixtures and end effectors. Knight's Shackle features a female clevis for direct connections. The BPA2410 Safety Chain Shackle attaches to Knight pneumatic balancer chains. It is equipped with a connection for a drop stop safety chain.- 360 degree rotation.
- Steel Construction.
- Connection for Safety Chain.
- Quick and Secure Connection.
- Weight
- 2.4 lbs. [1.08kg]
Details
Knight Global's BPA2113 Pneumatic Balancer Chain Hook connects Air Balancers quickly and securely to fixtures and end effectors. The Hook is equipped with a 1 ton capacity Crosby/Bullard® Golden Gate size 2 Pin-Lok Hook with self closing gate and 360° rotational capabilities.For instructions on installing this hook to Knight's chain, see the video here.
- (Carbon Steel) Crosby® Bullard Hook w/ Self Closing Gate.
- Quick and Secure Connection
- 360 degree rotation.
- Max capacity
- 700 lbs [318 kgs]
- Weight
- 4.8 lbs. [2.22kg].
Details
The BPA2035 Quick Connect/Disconnect allows for fast connections and disconnections of fixtures and end effectors. Easily disengages by the simple push and twist of the release pin. Each quick disconnect comes with two pins, and can be quickly connected to the load chain.
- 360 degree rotation.
- Forged Alloy Steel – Quenched and Tempered.
- Connection for Safety Chain.
- Nylon Safety Cover.
- Quick and Secure Connection.
Load Trolley 6
- Max capacity
- 3, 000 lbs. [1, 360kg]
- Weight
- 9 lbs. [4.08kg]
Details
The MRTA7706 Load Trolley suspends Knight pneumatic balancers and fixtures from RAD7510 series aluminum rail systems.- Fiberglass filled High Impact Nylon Wheels.
- Side Guide Rollers with integrated bearings.
- Double-shielded wheel bearings keep dirt out, and do not require lubrication.
- Min/ Max Continuous Service Temp at 100% load: -20 degs. F to 248 degs. F.
- Max capacity
- 1, 600 lbs. [725kg]
- Weight
- 6 lbs. [2.72kg]
Details
The MRTA6106 Load Trolley suspends Knight pneumatic balancers and fixtures from RAD6110 series aluminum rail systems.- Fiberglass filled High Impact Nylon Wheels.
- Side Guide Rollers with integrated bearings.
- Double-shielded wheel bearings keep dirt out, and do not require lubrication.
- Min/ Max Continuous Service Temp at 100% load: -20 degs. F to 248 degs. F.
- Max capacity
- 1, 100 lbs. [499kg]
- Weight
- 5 lbs. [2.26kg]
Details
The MRTA4442 Load Trolley suspends Knight pneumatic balancers and fixtures from RAD4110 series aluminum rail systems.- Recommended for the optimum Balancer Load Trolley.
- Fiberglass filled High Impact Nylon Wheels.
- Side Guide Rollers with integrated bearings.
- Double-shielded wheel bearings keep dirt out, and do not require lubrication.
- Min/ Max Continuous Service Temp at 100% load: -20 degs. F to 248 degs. F.
- Max capacity
- 550 lbs. [250kg]
- Weight
- 2 lbs. [0.90kg]
- Jib type
- TR2000 series
Details
Knight Global's TRT2001 transfers loads along the horizontal axis and suspends Knight Pneumatic Balancers and Fixtures and Festooning from Knight's TR2000 Series Aluminum Rail Systems.- Double-shielded wheel bearings keep dirt out, and do not require lubrication.
- Prevents drag on the load trolley.
- Min/ Max Continuous Service Temp at 100% load: -20 degs. F to 248 degs. F.
- Max capacity
- 2, 000 lbs. [1, 360kg]
- Weight
- 23 lbs. [10.4kg]
Details
The RTA2013 Load Trolley for W-Beams transfers loads along the horizontal axis and suspends Knight pneumatic balancers by the use of the center mounting holes.- Travels on a W-Beam, I-Beam and Patented Track.
- Steel Wheels.
- Double-shielded wheel bearings keep dirt out, and do not require lubrication.
- Max capacity
- 2, 000 lbs. [1, 360kg]
- Weight
- 22.1 lbs. [10.2kg]
Details
The RTA2014 Load Trolley for S-Beams transfers loads along the horizontal axis and suspends Knight pneumatic balancers by the use of the center mounting holes.- Travels on a S-Beam.
- Steel Wheels.
- Double-shielded wheel bearings keep dirt out, and do not require lubrication.
Safety Cables 3
- Lengths
- 10 ft. [3.048m]
- Cable thickness
- 0.25 in. [6mm]
Details
Knight Global's FDA4133 Eye Bolt Safety Cable Kit prevents pneumatic balancers or fixtures from separating or falling from the overhead mounted trolleys, end trucks, or hangers in the event of an accident.- (4) Crosby® Saddle Clamps
- (2) Cable Thimbles
- (2) Eye Bolts
- (1) Safety Cable made of a carbon steel 7 (strand) x 19 (wires) Galvanized Wire Rope (GWR).
- Weight
- 2 lbs. [.91kg]
- Lengths
- 10 ft. [3m.]
- Cable thickness
- 0.25 in. [6mm]
Details
Knight Global's NICORWA4133 Safety Cable Kit prevents pneumatic balancers or fixtures from separating or falling from the overhead mounted trolleys, end trucks, or hangers in the event of an accident.Replaces the CAMIRWA4133 Safety Cable Kit.
- (2) Copper Oval Sleeves
- (2) Cable Thimbles
- (1) Safety Cable made of a carbon steel 7 (strand) x 19 (wires) Galvanized Wire Rope (GWR).
- Lengths
- 6 ft. [1.8m]
- Cable thickness
- 0.25 in. [6mm]
Details
Knight Global's RWA4133 prevents pneumatic balancers or fixtures from separating or falling from the overhead mounted trolleys, end trucks, or hangers in the event of an accident. This safety cable kit is used as Knight's standard kit.- Used as Knight’s standard safety cable kit.
- (4) Crosby® Saddle Clamps
- (2) Cable Thimbles
- (1) Safety Cable made of a carbon steel 7 (strand) x 19 (wires) Galvanized Wire Rope (GWR).
Pneumatic Controls 8
Details
Coiled or straight hose management kit controls connection to balancer logic box.- Air logic box and bracket.
- Logic box to balancer air bracket connection hose fitting
Details
Coiled or straight hose management kit connection to balancer air bracket.- Manifold to Balancer Air Bracket Connection to Hose Fitting.
- Air Manifold and Control Handle.
- Max capacity
- 150 lbs. [68kg].
- Weight
- 2.2 lbs. [0.99kg]
Details
Balances a single object without requiring the need for a separate pendant control. It allows for a hands free operation while supporting a constant weight at zero gravity. The BCS2018 is ideal for fastening tools and recommended to be used for applications not to exceed 150 lbs. [68kg] (end effector and part).- Supports a constant weight at zero gravity.
- Ideal for balancing fastening tools.
- Balances a single object without requiring the need for a separate pendant control.
- Allows for a hands free operation.
- Lengths
- 10 ft. [3m]
- Hose type
- Straight
Details
The BCS2090 & BCS2322 High Relieving Single Balancer Control Module are most commonly used for near capacity or heavy weight applications to eliminate the need for a separate pendant and allows for the operator to more efficiently control the balance mode of a heavier part such as a setting fixture.- Does not allow for variances in weights.
- Assists in increasing the air volume.
- Exhausts the air in a more efficient manner.
- BCS2090 – Loads under 250 lbs. [113kg].
- BCS2322 – Loads UP TO 500 lbs. [227kg].
- Max capacity
- 100 lbs. [45kg] at 80 psi
- Weight
- 12.4 lbs. [5.64kg].
- Lengths
- 10 ft. [3m]
- Hose type
- Straight Hose Only
- Configuration
- Horizontal or Vertical
Details
The BCS2213 and BCS2214 Feather-Touch Air Balancer Control handle is typically used for lightweight applications. This control handle is activated by an up or down movement of the control handle. Knight's Feather-Touch Control handles are available in a Horizontal handle (BCS2213) or Vertical handle (BCS2214) with standard hose lengths of up to 10 ft. [3m] (Straight Hose only).
- Eliminates the need for a separate pendant.
- Allows the operator to control the up and down movements close to the part.
- Horizontal handle (BCS2213)
- Vertical handle (BCS2214)
- Weight
- 10.2 lbs. [4.63kg].
- Lengths
- 10 ft. [3m]
- Hose type
- BCS2323: Straight Hose, BCS2215: Coiled Hose
- Configuration
- (2) Button
Details
The BCS2215 and BCS2323 Dual Air Balance Control unit will support (2) different weights at Zero Gravity. For Lift Assist Devices (LAD) the first weight category is the unloaded assist with no part engaged. The second weight category is the assist with the part secured that it is intended to lift/move.
The weight of the part cannot vary more than +/- 2.5 lbs from the setting point of the regulator or there will be drifting either in the UP or DOWN direction depending on if the weight is more or less of the original set point.
Knights Dual Air Balance Control units are available in a straight (BCS2323) or coiled (BCS2215) hose that comes in standard length of 10 ft. [3Meter].
- Controls (2) different weights at zero gravity.
- Pendant buttons control which balance the operator desires.
- Primarily used in hands free applications where the operator picks up a part and sets it down.
- Dual balance creates a zero gravity for the end effector with or without a part.
- Ergonomic Handle Grip.
- Thumb Lever Guards to protect for inadvertent depressing of control levers.
- Lengths
- 10 ft. [3m]
- Handle type
- BPA9300
- Hose type
- BCS3330: Straight, BCS2326: Coiled
- Configuration
- (2) Button
Details
The Tandem Up/Down Pendant Control is most commonly used to control Tandem Pneumatic/Air Balancers, Knight Global Up/ Down Pendant Control handles. Available in a coiled (BCS2326) or straight (BCS3330) hose that comes in standard lengths up to 10 ft. [3m].
- (1) BPA9050B Pneumatic Block.
- 2-way valves used for a single acting air balancer or lift assist that is used for up/ down movement.
- Ergonomic Handle Grip.
- Thumb Lever Guards to protect for inadvertent depressing of control levers.
- Lengths
- 10 ft. [3m]
- Handle type
- BPA9300
- Hose type
- BCS3017: Straight, BCS3320: Coiled
- Configuration
- (2) Button
Details
The BCS3017 & BCS3320 Up/Down Pendant Controls are standard control handles with variable speed control for loading and unloading varying weights. Includes a manifold kit. BCS3017: Straight Hose BCS3320: Coiled Hose- (1) BPA9050B Pneumatic Block.
- 2-way valves for up/ down movement.
- Ergonomic Handle Grip.
- Thumb Lever Guards.
- Manifold kit included.
Technical documents
Brochure
CAD Drawings
Installation Guides
- Air Balancer Trouble Shooting Guide (Netherlands)
- Air Balancer Troubleshooting Guide-2017
- Air Balancer Troubleshooting Guide-2021
- Air Connection with Balancer Logic Box
- Air Connection with Balancer Manifold
- Balancer Inspection Form
- External Safety Retract Control Information
- Eye Bolt Safety Cable Installation Instructions
- Safety Cable Installation Instructions End Trucks, Hangers, Trolleys
Manuals
More in this category
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