Cantek SR-Series 230V Three Phase Two-Head 43”x75” Widebelt Sander with Variable Feed Speed SR43DA

Description

The Cantek SR43DA 43” Wide Belt Sander presents an outstanding configuration that combines a robust machine frame with exceptional features. Its dual sanding heads reduces the number of passes required. The first sanding head features a rubber contact drum. Complementing this, the second head is a combination design with a rubber contact drum and adjustable sanding platen, providing flexibility for further calibration or finish sanding with finer sanding grits. The inclusion of 75” long belts extends the intervals between belt changes. The quick-setting digital thickness control system enables automatic table adjustable. This configuration excels in applications demanding superior sanding quality, efficiency, and versatility, making it an excellent choice for various woodworking and manufacturing operations. 

Why Cantek SR43DA 43” Widebelt Sander? 

• Heavy-duty construction with upgraded horsepower for production use 
• Dual sanding heads for increased productivity 
• The first sanding head is hard rubber for calibration results, while the second head is a combination unit with adjustable platen for calibration and finish sanding capabilities 
• Accurate digital thickness control to 0.001” resolution 
• Micro sanding drum height adjustments with dial indicators 
• Caliper thickness setting unit for fast setup to your workpiece 

Machine Configuration

“D” Control Drum: The 10” diameter rubber contact drum allows for calibration of panels prior to final sanding. Powered by a 20HP motor. 

“A” Combination Head: The versatile combi-head features a 6” diameter contact drum with a 3” adjustable platen. The adjustable platen allows seamless transitions between calibration and fine sanding, enhancing efficiency and workflow. Powered by a 15HP motor. 

Rubber Contact Drum

The first sanding head is a 10” rubber sanding drum, ideal for calibration sanding tasks. This robust drum ensures efficient material removal and precise surface leveling. The softer surface minimizes the occurrence of chatter marks or swirls on the workpiece, ensuring a smoother and more refined end result. 

Combination Head

The last head incorporates a 6” rubber contact drum with a 3” wide adjustable platen. The platen can be raised when further calibration is required and lowered for final sanding with finer grits. The platen is configured with a felt strip and covered in friction reducing graphite cloth. This setup allows for fine sanding results and optimal surface finish. 

Accurate Adjustment of the Drums and Platen

The first contact drum can be micro-adjusted for belt grit compensation through use of a graduated scale and dial indicator. The platen on the combination unit can be raised or lowered depending on whether you are performing calibration or finishing sanding with the guidance of a scale. The quick-release outboard supports allow for fast belt changes to reduce changeover time. The tracking adjustment is also easily performed by adjusting the knob left and right to ensure it is operating optimally. 

Electronic Belt Tracking

An advanced electronic belt tracking system uses a send-and-receive sensor that delivers pinpoint accuracy in detecting the sanding belt. This precision ensures the most reliable belt tracking increasing overall performance. Specially located air nozzles ensure the sensor and reflector remain dust free. Each sanding head is equipped with belt overrun limit switches which are designed to shut down the machine in the event a belt over travels preventing damage to the belt. 

Automatic Disc Brakes for Sanding Heads

A pneumatic disc braking system swiftly stops the sanding heads when stopped or when a fault occurs on the machine. This enhances operator safety, machine safety, and reduces changeover time. Additionally, the sanding motors come equipped with Wye-Delta controls which reduce power consumption on startup. 

Safety Systems

The SR series comes equipped with a wide range of features designed for both operator and machine safety. A safety bump bar on the infeed bed allows the operator to quickly shut the machine down even if their hands are in use. A material over height limit switch protects the machine from feeding thicker material than was intended. There are limit switches on the left and right access doors which will not allow the machine to run when left open. An emergency stop button is located in front and at the rear of the machine. The interior LED lighting indicated when the machine is in fault condition or a ready to run state. 

Control Panel with Digital Thickness Setting

The sander is equipped with a digital thickness control allowing for precision thickness adjustment. The control can be set in inch or metric with a resolution to 0.005” and 0.1mm. The table can also be jogged up or down using independent push buttons. The sanding head is equipped with an ammeter allowing the operator to monitor the load for optimal finish results and belt longevity. The bypass key switch allows the operator access to the sanding unit for convenient tracking adjustment. The machine comes equipped with an emergency stop button on the front and rear of the machine for added operator and machine safety. 

High-Quality Italian Rubber Conveyor Bed

The reinforced rubber conveyor belt (made in Italy) provides optimum grip while remaining very consistent in thickness for sanding precision. Additionally, there is a vacuum hold down system which allows you to hook up your dust collection system to provide vacuum hold down of the conveyor belt flat on the machined steel table for added precision. (This is not used for part hold down). 

Table Elevation Jack Screws

The table is raised and lowered by four industrial jack screws ensuring perfect flatness and added durability. The screws are covered with rubber bellows to prevent dust contamination. 

Variable Speed Feed Motor

The feed conveyor is driven by a powerful 3HP motor. The feed speed is controlled using a frequency inverter (VFD) and can be adjusted conveniently on the touch screen control. This feature allows the operator to set the desired feed speed according to the material and sanding operation being performed whether that be stock removal or final sanding. 

Caliper Auto Thickness Setting Device

A caliper auto thickness setting on a wide belt sander offers precise and consistent sanding thickness by automatically detecting the panel thickness. By automatic the thickness adjustment process, operators can save time and labor while also promoting machine safety through improper table adjustments. 

Electrical Controls 

Cantek uses high quality Schneider electrical controls to operate the sander, ensuring reliable performance. These electrical components are readily available from Cantek or major electrical stores across North America for added convenience when required. 

Features

• Heavy-duty welded steel frame with cast iron sanding head assemblies for vibration-free sanding 
• Dual rubber-covered pressure rollers on infeed and outfeed for consistent material hold down 
• High-quality rubber conveyor with automatic pneumatic belt tracking 
• Extended infeed bed with two table rollers 
• The table is adjusted using four heavy-duty jackscrews driven by a robust chain system 
• Automatic caliper thickness setting 
• Electronic sanding belt tracking 
• Pneumatic belt tensioning & quick release outboard support for fast belt changes 
• Automatic disc brakes for the sanding heads allow for fast belt changeover 
• Safety switches on all access doors 
• High-quality Schneider electrical controls and Comozzi pneumatic valves 

Specifications

• Abrasive Belt Size: 43” x 75”
• 1st Main motor: 20 HP
• 2nd Main motor: 15 HP 
• Feed motor: 3 HP 
• Table rise/fall motor: ½ HP 
• Working width: 42”
• Min part length: 16.9”
• Max thickness opening: 4.7”
• Feed speed (variable): 13 to 59 FPM 
• Pass line height: 37”
• Dust outlet: 8 @ 5” 
• Compressed air pressure: PSI 85
• Compressed air volume: 12 CFM 
• Electrical Requirements: 230V / Three Phase / 60Hz / 102 amps
• Net weight: 6,613 lbs 
• Machine Dims: 83” x 71” x 79”
• Shipping weight: 7,275 lbs 
• Shipping Dims: 87” x 79” x 82”