Suburban Round Magnetic Chucks

Round Permanent Magnetic Chucks

• Made in U.S.A.
• For efficient holding of magnetic work pieces on grinders, lathes, and other machines with rotating spindles.
• Permanent, ceramic magnets provide superior holding power that never fades and require no electrical controls or collector rings.
• Thick top plates are laminated from steel and stainless steel, then furnace brazed into one solid piece and precision ground.
• Top plate can be drilled, tapped or machined to three-fourths of its thickness (approx. 5/8″), if necessary, to allow the use of dowel pins or other mechanisms as locating devices.
• Back surface of aluminum chuck body has Tapped Holes (D) and a Turned Counterbore (B) for convenient mounting to your machine.
• “Partial-On” for holding parts prone to distortion.
• Removable on-off handle included with each chuck.
• All models except 5-1/2″ dia (RMC-5) which uses the swing-type on-off method, are sealed against water and other elements.

STANDARD POLE: 1/4″ poles and 1/8″ separators produce deep flux lines for holding large and thick parts. (RMC-15 and RMC-20 have 3/8″ poles and 3/8″ separators).

FINE POLE: 1/8″ poles and 1/8″ separators produce shallow flux lines for holding small and thin parts.

STANDARD POLE MODEL # Diameter (A) Counterbore
Diameter (B) Bolt Circle (C) Tapped Holes (D) Height (E) WEIGHT RMC-5 5-1/2″ 3″ x 1/8″ 4″ (4) 1/4-20 3″ 15 lbs. RMC-6 6-1/4″ 3″ x 1/8″ 4″ (4) 1/4-20 3″ 17lbs. RMC-8 7-3/4″ 4″ x 3/16″ 5″ (4) 3/8-16 2-15/16″ 27lbs. RMC-9 9-1/4″ 4″ x 3/16″ 5″ (4) 3/8-16 3″ 37lbs. RMC-10 10-1/8″ 4″ x 3/16″ 5″ (4) 3/8-16 3″ 41lbs. RMC-12 12-1/4″ 4″ x 3/16″ 5″ (4) 3/8-16 3″ 60lbs. RMC-15 15-1/4″ 6″ x 1/4″ 7-3/8″ (6) 5/16-18 3-1/2″ 120lbs. RMC-16 16-1/4″ 8″ x 3/16″ 9″ (6) 3/8-16 3″ 96lbs. RMC-20 20-1/4″ 11″ x 1/4″ 12-13/32″ (6) 3/8-16 3-1/2″ 205lbs. FINE POLE MODEL # Diameter (A) Counterbore
Diameter (B) Bolt Circle (C) Tapped Holes (D) Height (E) WEIGHT RMC-6FP 6-1/4″ 3″ x 1/8″ 4″ (4) 1/4-20 2-15/16″ 18 lbs. RMC-8FP 7-3/4″ 4″ x 3/16″ 5″ (4) 3/8-16 2-15/16″ 27 lbs. RMC-10FP 10-1/8″ 4″ x 3/16″ 5″ (4) 3/8-16 2-15/16″ 43 lbs. RMC-12FP 12-1/4″ 4″ x 3/16″ 5″ (4) 3/8-16 2-15/16″ 62 lbs.