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Overhead Mounted Vertical Mast Arm
Knight’s ATA4000 Overhead Mounted Vertical Mast Arm has fixed control handles that improve ergonomics by eliminating the need for an operator to bend or reach. It is typically used in applications that require significant up and down travel and precision placement. The arm can either rotate 360 degrees or can be fixed mounted for the operator.
Vertical Mast Arms are available with either a round mast for direct loads, or a square THK mast for offset cantilevered loads.
The ATA4000 Vertical Mast Arm can be used with any Knight Balancer or chain hoist. It can also come with an attached bearing clutch and friction (bumper) parking brake. This arm has a maximum capacity of 500 lbs. [226kg] and a maximum torque of 853 ft/lbs. [1,156Nm]. Maximum travel varies with each application.
Contact a Knight representative for more information.
To see examples of custom Pneumatic Arms designed by Knight, visit our Gallery.
General Information
+Features
- Handles in a fixed ergonomic position on the mast.
- Variety of Control Configurations.
- Rail Length Available: Up to 15 ft. [4.6m].
- Max. Arm Length: Up to 48 in. [1,219mm].
- Max. Torque: Up to 853 ft./lbs. [1,156Nm]. (Lengths over 48 in. Contact a Knight Representative).
- Max. Vertical Travel: Varies
- Max. Capacity: Up to 500 lbs. [226kg] at 100 psi [6.8bar].
Benefits
- Can be used with a Knight Balancer or Chain Hoist.
- Reduces Operator Fatigue.
- Fixed or 360° Rotation.
- Optional Parking Brake.
- Optional Bearing Brake.
Videos
+*Applications Compilation
Vertical Mast Arm – IP Install Assist
Accessories
General
+
- Pneumatic Parking Brake System.
- Parking brake is also a drag brake when regulator is attached.
- Replaceable Brake Pads.
- Stroke Size: 0.75 in. [19.1mm].
- Bore Pneumatic Cylinder: 2.00 in. [50.8kg].
- Pneumatic clutch Brake.
- Min. Static Clutch Torque: 910 in. lbs. [102Nm].
- Max. Static Clutch Torque: 3,640 in. lbs. [411Nm].
- For Torque Applications.
- Assists operator in pushing, pulling and positioning loads.
- Maximum Speed: 1.9 ft. per sec [1.3mph].
- Maximum Air Consumption: 75 cfm.
- MCBF: >500,000 (>10,000,000 Linear ft.).
- Integrated Load Trolley.
- Tows fixtures, bridges and loads.
- Optional TRA2001 (Hanging) pendant.
- Optional TRA2002 (Fixture Mounted) pendant.
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.
- 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.
- 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.
- Side Guide Rollers with integrated bearings.
- Double-shielded wheel bearings keep dirt out, and do not require lubrication.
- Fiberglass filled High Impact Nylon Wheels.
- Min/ Max Continuous Service Temp at 100% load: -20 degs. F to 248 degs. F.
- Side Guide Rollers with integrated bearings.
- Double-shielded wheel bearings keep dirt out, and do not require lubrication.
- Fiberglass filled High Impact Nylon Wheels.
- Min/ Max Continuous Service Temp at 100% load: -20 degs. F to 248 degs. F.
Safety Cable
+
- (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).
- (2) Copper Oval Sleeves
- (2) Cable Thimbles
- (1) Safety Cable made of a carbon steel 7 (strand) x 19 (wires) Galvanized Wire Rope (GWR).
- 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).
