Cantek SR-Series 460V Three Phase Three-Head 43”x75” Widebelt Sander with Variable Feed Speed SR43DDA

Description

A Sander that is not only highly capable but thrives in multi-shift environments. 

The Cantek SR43DDA 43” Wide Belt Sander presents an outstanding configuration that combines a robust machine frame with exceptional features. Its triple sanding heads reduce the number of passes required. The first sanding head features a steel contact drum, the second head offers versatility with a 10” rubber contact drum, the final 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 adjustment. 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 SR43DDA 43” Wide Belt Sander?

• Heavy Duty Construction: robust thick welded steel machine frame and industrial sanding units offer increased efficiency while enhancing machine longevity 
• Powerful Motors: equipped with high-performance sanding motors for efficient stock removal and precise calibration 
• Enhanced Throughout: the powerful combination of three sanding heads reduces grit changeovers and maximizes productivity 
• Industrial Sanding Units: the cast-iron & industrial welded steel sanding units are mounted on a sturdy base to provide exceptional vibration damping for optimal sanding results 
• Variable Feed Speed Adjustment: inverter-driven variable speeds allow precise control over the feed rate, adapting to different materials and processing requirements
• User-Friendly Touchscreen Control: easily adjust feed speed, thickness settings, monitor the amp load on each head, and log any machine errors for enhanced diagnostics 
• Robust machine structured with cast iron head assemblies for superior sanding results 
• Dual sanding heads for increased productivity 
• Accurate digital thickness control with both inch and metric settings allows the operator to key in the desired thickness and the table will automatically move into position 
• Caliper thickness setting unit for fast setup to your workpiece 
• “D” sanding unit = 10” diameter steel contact drum 
• “D” sanding unit = 10” diameter 75 durometer contact drum available in rubber as additional add-on 
• “A” sanding unit = 5-½” diameter 65 durometer combination head with rubber contact drum and adjustable 3” sanding platen ideal for calibrating and finish sanding  

Machine Configuration

“D” Contact Drum: the 10” diameter steel contact drum allows for initial calibration of panels. Powered by a 30 HP motor. 

“D” Contact Drum: the 10” diameter rubber contact drum allows for refined calibration of panels prior to final sanding. Powered by a 25 HP 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 20 HP motor

Steel Contact Drum

The first sanding unit is a 10” steel contact sanding drum. Ideal for calibration sanding tasks. This robust drum ensures efficient material removal and precise surface leveling. Its size and construction provide unmatched durability for consistent and dependable results 

Rubber Contact Drum

Following the first sanding unit is a 10” rubber sanding drum crucial for intermediary sanding and final calibration. This contact drum facilitates finer sanding, resulting in an improved surface finish with reduced risks for over-sanding. 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

All of the contact drums 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. 

Air Jet Belt Cleaning Device 

Each sanding head is outfitted with an air jet belt cleaning device which sprays air at the sanding let as it travels over the top idle drum. The belt crests the drum and opens the grit where a blast of air removes the dust build up on the belt. This system provides a longer belt lift and improves consistency and overall sanding results. The air jets also help to mitigate streaking lines from debris trapped on the abrasive belt. 

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. 

User-Friendly Touch Screen Control

The touch screen interface is easy to use and provides the operator with user friendly controls all in one place. This unit allows the operator to enter in the desired thickness to a 0.001” or 0.1mm resolution. The feed speed can be entered precisely and is controlled by a VFD inverter. Each planer and sanding head can be turned off and on individually with a Wye-Delta soft start control. The amperage of each unit is displayed allowing the operator to monitor the amp load during operation to aid in achieving the best overall sanding result and prolong belt life through proper use. The on board error diagnostics display any machine faults to allow for fast diagnosis of any potential issues. 

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 5HP 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 automating the thickness adjustment process, operators can save time and labor while also promoting machine safety through improper table adjustments. 

Electric 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 top quality pneumatics 
• Clear Plastic Windows: allow visual access to sanding heads, enabling operators to monitor oscillation and sanding belts without interrupting machine operation 

Specifications

• Abrasive belt size: 43” x 75” 
• 1st main motor: 30 HP 
• 2nd main motor: 25 HP 
• 3rd main motor: 20 HP 
• Feed motor: 5 HP 
• Table rise/fall motor: 1 HP 
• Working width: 42” 
• Min part length: 16.9”
• Max thickness opening: 4.7”
• Feed speed (variable): 13 to 59 FPM 
• Dust outlet: 12 @ 5” 
• Compressed air pressure: PSI 85
• Compressed air volume: 18 CFM 
• Dust collection requirements: 8,063 CFM 
• Electrical Requirements: 460V / Three Phase / 60Hz / 97 FLA 
• Net weight: 9,259 lbs
• Machine dims: 98” x 71” x 79”
• Shipping weight: 10,031 lbs 
• Shipping dims: 115” x 79” x 82”

 Optional Add-Ons

• Rubber contact drum on first head 
• Steel contact drum on second head 
• Contact drum on third head, no platen 
• Brush roller on outfeed, to clean material 
• Vacuum bed for small part hold down