Ascension Industries
Spin Rolls
716-693-9381


Close up of Rolls

Spin Roll Comparison Chart

Please use this table as an aid to comparing different Spin Roll models (click a link below to move directly to that Model), or view an individual Spin Roll model details by clicking on it's image:

525-M | 525-P | 500-M | 500-PT | 500-VP | 525-M | 530-M | 530-PT | 530-VP | RVM-100 | MRV-10

Model & Features:	Description:	Specifications:
525-M Assured concentricity .0005 Manual Driven Quick, easy, and accurate loading Constant torque handle optional Compact and lightweight	The original and basic Spin Roll. Simply mount this compact, portable, lightweight workholder on a suitable machine, insert the workpiece between the three intermeshing contact rolls and against the adjustable end stop. Tighten the clamping knob (no additional clamping, fitting or adjusting is necessary). Turn the hand crank (on the shaft of one contact roll). All rolls revolve and rotate the piece on its own circumference, achieving precise concentricity while maintaining linear position. All set for easy, efficient, accurate grinding or other machining. Workpieces remove easily. Spin Roll assures exact duplicattion on multiple runs.	Dimensions (inches): 6 -1/8 long x 4 -1/2 high x 4 wide Workpiece Capacities: Diameter (inches): Length (inches): 1/64 to 1-1/4 *5/8 to 5 standard Power: Manual Bearings: 3 Permanently Sealed & Lubricated Clamping: Single Clamping Knob Weight (~lbs.): 9 lbs Options: *Special roll widths available. Optional torque handle

525-P Assured concentricity .0005 Power driven/enclosed motor Quick, easy, and accurate loading Constant torque handle optional Compact and lightweight Optional extended stop for lengths up to 20"	Identical to Model 525-M, but equipped with a 1/8 HP electric motor and gear reducer which produces 193 RPM on a direct drive output shaft. Greater versatility has been incorporated with an optional 20" adjustable extended stop.	Dimensions (inches): 9-1/2 long x 6 high x 10 wide Workpiece Capacities: Diameter (inches): Length (inches): 1/64 to 1-1/4 *5/8 to 5 standard Power: 1/8 HP (motor equipped with gear reducer producing 193 RPM on direct output shaft) Bearings: 3 Permanently Sealed & Lubricated Clamping: Single Clamping Knob Weight (~lbs.): 24 lbs Options: *Special roll widths available. Optional torque handle. Extended stop bracket for workpiece lengths up to 20"

500-M Assured concentricity .0002 Manual Driven Quick, easy, and accurate loading Constant torque handle optional Compact and lightweight	The 500 M automatically centers diameters and assures concentricity, linear positioning, and precise duplication for any number of workpieces. Just mount the Model 500-M on the magnetic chuck of a surface grinder, adjust the finger stop to shank diameter and length of workpiece, and proceed with grinding operation.	Dimensions (inches): 11 long x 6-1/2 high x 7 wide Workpiece Capacities: Diameter (inches): Length (inches): 1/64 to 1-1/4 Power: Manual Bearings: 12 Permanently Sealed & Lubricated Clamping: Adjustable Torque Handle Weight (~lbs.): 19 lbs Options: *Special roll widths available.

500-PT Assured concentricity .0002 Power driven/enclosed motor Quick, easy, and accurate loading Constant torque handle standard Lubricated air clamp optional Compact and lightweight	Power driven by a 1/8 HP motor, this Spin Roll model can be used as an accessory or a self-contained bench unit. Now, even machine shops with minor capacity rotary operations cannot afford to be without this time, work, and money-saver. Also available with special mounting platens for other machine tools.	Dimensions (inches): 12 long x 10-1/2 high x 8 wide Workpiece Capacities: Diameter (inches): Length (inches): 1/64 to 1-1/4 *5/8 to 5 standard Power: 1/8 HP, 110 V Bearings: 12 Permanently Sealed & Lubricated Clamping: Adjustable Torque Handle Weight (~lbs.): 28 lbs Options: *Special roll widths available. Lubricated Air Clamp

500-VP Assured concentricity .0002 Power driven variable speed/ enclosed motor Quick, easy, and accurate loading Constant torque handle standard Lubricated air clamp optional Lower silhouette	Similar to the Model 500-PT Spin Roll but with these additional special features: Variable speed control with rheostat which permits selection of constant torque speeds between 0 and 200 RPM; A lower silhouette (only 7 inches high), allowing for better work observation	Dimensions (inches): 22 long x 7 high x 9-3/4 wide Workpiece Capacities: Diameter (inches): Length (inches): 1/64 to 1-1/4 *5/8 to 5 standard Power: 1/8 HP (0 to 200 RPM) Bearings: 12 Permanently Sealed & Lubricated Clamping: Adjustable Torque Handle Weight (~lbs.): 45 lbs Options: *Special roll widths available. Lubricated Air Clamp

500-D Assured concentricity .0002 Power driven variable speed/ enclosed motor Quick, easy, and accurate loading Lubricated air clamp standard Spin Roll has 2 interlock rolls parallel to base for use on cylindrical grinders. O.D., I.D., or cutter grinder Base furnished to fit requirements. (Data sheets supplied for specifications and approval)	This special Spin Roll model incorporates all the features of the Model 500-VP but is provided with sturdy, solid cast base plates and structural components made to accommodate the particular dimensions of your machine and production requirements. (Data sheets supplied for specifications and approval).	Dimensions (inches): Variable to requirements Workpiece Capacities: Diameter (inches): Length (inches): 1/64 to 1-1/4 *5/8 to 5 standard Power: 1/8 HP (0 to 200 RPM) Bearings: 12 Permanently Sealed & Lubricated Clamping: Air Cylinder Closure including Lubricator-Filter and Gage with 8' Air Hose Weight (~lbs.): 50 lbs Options: *Special roll widths available.

530-M Assured concentricity .0002 Manual driven Quick, easy, and accurate loading Constant torque handle standard Compact and lightweight Ideal for rotating larger diameters	Having the same advantages offered by Model 500-M, the Model 530-M will accommodate workpiece diameters from 1 1/4" to 3".	Dimensions (inches): 13 long x 7 high x 9-3/4 wide Workpiece Capacities: Diameter (inches): Length (inches): 1-1/4 to 3 *5/8 to 5 standard Power: Manual Bearings: 12 Permanently Sealed & Lubricated Clamping: Adjustable Torque Handle Weight (~lbs.): 22 lbs Options: *Special roll widths available.

530-PT Assured concentricity .0002 Power driven/enclosed motor Quick, easy, and accurate loading Constant torque handle standard Lubricated air clamp optional Compact and lightweight Ideal for rotating larger diameters	This model is identical in performance to the manual Model 530-M, but is powered by its own self-contained motor.	Dimensions (inches): 13 long x 11 high x 9-3/4 wide Workpiece Capacities: Diameter (inches): Length (inches): 1-1/4 to 3 *5/8 to 5 standard Power: 1/8 HP, 110V (motor & gear box which produces 193 RPM on direct drive output shaft) Bearings: 12 Permanently Sealed & Lubricated Clamping: Adjustable Torque Handle Weight (~lbs.): 30 lbs Options: *Special roll widths available. Lubricated Air Clamp

530-VP Assured concentricity .0002 Power driven variable speed/enclosed motor Quick, easy, and accurate loading Constant torque handle standard Lubricated air clamp optional Lower silhouette Ideal for rotating larger diameters	This model is similar to the 530-PT but with a variable speed control with a rheostat which permits selection of constant torque speeds between 0 and 200 RPM.	Dimensions (inches): 24 long x 7 high x 9-3/4 wide Workpiece Capacities: Diameter (inches): Length (inches): 1-1/4 to 3 *5/8 to 5 standard Power: 1/8 HP, 110V (0 to 200 RPM) Bearings: 12 Permanently Sealed & Lubricated Clamping: Adjustable Torque Handle Weight (~lbs.): 52 lbs Options: *Special roll widths available. Lubricated Air Clamp

RVM-100 Assured concentricity .00005 T.I.R. Quick, easy and accurate loading Mounts vertically or horizontally Portable Finished lengths from 11/16 to 8" standard Handle fits choice of positions for operation	Inspects the concentricity and straightness of circular or round shafted objects quickly, safely, and accurately. Workpiece is inserted between the three intermeshing contact rolls and against the end stop which has been adjusted to the length required. The workpiece rotates on its own circumference, achieving precise concentricity while maintaining linear positioning. Because of the greater ratio of diameter of rolls to diameters of workpiece, the workpiece makes many revolutions per turn of the rolls.	Dimensions (inches): 7-1/4 long x 4-1/2 high x 6- 1/4 wide Workpiece Capacities: Diameter (inches): Length (inches): 1/64 to 1-1/4 11/16* to 8 Power: Manual Bearings: Precision Ground Centers Clamping: Adjustable Spring Pressure Weight (~lbs.): 20 lbs Options: *Special roll widths available for shorter lengths

MRV-10 Assured concentricity .00005 T.I.R. Quick, easy and accurate loading Mounts vertically or horizontally Portable Finished lengths from 11/16 to 3" standard	Similar to the RVM-100, this miniature Rotary "V" Block is designed for inspection of small circular products requiring true concentricity.	Dimensions (inches): 3-1/2 long x 3-1/4 high x 3 wide Workpiece Capacities: Diameter (inches): Length (inches): 1/64 to 1/4 11/16* to 3 Power: Manual Bearings: Precision Ground Centers Clamping: Automatic Adjustable Spring Pressure Weight (~lbs.): 2 lbs Options: *Special roll widths available for shorter lengths