Republic Lagun | Cylindrical Grinders

Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

Standard Equipment

Grinding Wheel and Flange - 1 set (Table mounted type)
Diamond Tool Holder - 1 pc. (38A60L)
Tools and Kits - 1 set
Carbide Tipped Work Centers - 2 pcs. (MT#3)
Coolant Equipment - 1 set
Hydraulic Pump with Tank - 1 set
Work Lamp - 1 pc. (24V)

Outstanding Features

A multi-function cylindrical grinder that allows for various grinding operations, such as straight plunge, shoulder, traverse, end surface, taper and internal.
Internal grinding is an optional function.
Cross feed is manual. Traverse feed is hydraulically operated.
The spindle is driven by a servo motor, providing variable speed change.
The structural parts are manufactured from high quality cast iron, heat treated and stress relieved for maximum material stability without deformation.
The grinding wheel spindle runs in special hydrostatic bearing, featuring no friction between metals, not heat growth and extra high accuracy.
The grinding wheel spindle is precision machined Nickel Chromolybedenum alloy steel (SNCM-200). The spindle is subject to various heat treatments, featuring maximum wear resistance without deformation.
The spindle head can be swiveled +90 -30.

Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

SPECIFICATION	RCG-ST-816
Distance between centers	15.7” (400 mm)
Swivel over table	7.9” (200 mm)
Max. Load of Centers	132.3 lbs. (60 kg)
Max. External Grinding Diameter	6.3” (160 mm)
Swivel angle	± 30°
Manual Distance	5.3” (135 mm)
Auto Rapid Advance	1” (25 mm)
Sliding Seat Supplementary Displacement	95 [total 10” (255 mm)]
Min. Setting Unit- graduation	0.0001”” (0.0025 mm)
One Turn of Handwheel feed (graduation)	.08” (0.0002 mm) [2 mm (0.005 mm)]
Micrometric feed	0.00004” (0.001 mm)
Handwheel Straight Infeed	0~0.01” (0~0.35 mm)
O.D. x Width x I.D.	12”x 1.5”x 5” (305 x 38 x 127 mm)
Speeds (belt type) r.p.m	2,085 / 2,495 rpm
Swivel Angle	120° (+90° -30°)
Center Taper	MT 3
Spindle Speeds (variable) r.p.m	16~450 rpm
Max. Load of Spindle (tool holder included)	33 lbs. (Max length: 3.9”) [15 Kgs (Max. length: 100 mm)]
Taper Center	MT 3
Stroke	0.8” (20 mm)
Swivel Angle	12.5°
Traverse Speed	2”~157.5”/min (50~4000 mm/min)
Auto. Reciprocate Min. Stroke	0.12” (3 mm)
Feed of one turn of Handwheel (2 step)	0.8” (0.08”) [20 mm (2 mm)]
Wheel Spindle	HP (2.1 kW) (4 P)
Workhead Spindle	1 HP (0.75 Kw) (Inverter)
Hydraulic Pump	1 HP (0.75 Kw) (6 P)
Wheel Spindle Lubrication Pump	0.24 HP (0.18 Kw) (2 P)
Coolant Pump	0.24 HP (0.18 kW) (2 P)
Internal Grinding Spindle	0.24 HP (0.18 kW) (2 P)
Wheel Spindle Lubricant Tank	3.2 gal (12 L)
Hydraulic Fluid Tank	17.2 gal (65 L)
Coolant Tank	26.4 gal (100 L)
Machine Weight	4,409 lbs. (2,000 kg)

Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

SPECIFICATION	RCG-ST-1220	RCG-ST-1240	RCG-ST-1260
Distance between centers	23.6” (600 mm)	39.4” (1000 mm)	59” (1500 mm)
Swivel over table	12.6” (320 mm)	12.6” (320 mm)	12.6” (320 mm)
Max. Load of Centers	330 lbs. (150 kg)	330 lbs. (150 kg)	330 lbs. (150 kg)
Max. External Grinding Diameter	11” (280 mm)	11” (280 mm)	11” (280 mm)
Swivel angle	± 30°	± 30°	± 30°
Manual Distance	6.3” (160 mm)	6.3” (160 mm)	6.3” (160 mm)
Auto Rapid Advance	1.6” (40 mm)	1.6” (40 mm)	1.6” (40 mm)
Sliding Seat Supplementary Displacement	95 [total 10” (255 mm)]	95 [total 10” (255 mm)]	95 [total 10” (255 mm)]
Min. Setting Unit- graduation	0.0001”” (0.0025 mm)	0.0001”” (0.0025 mm)	0.0001”” (0.0025 mm)
One Turn of Handwheel feed (graduation)	.08” (0.0002 mm) [2 mm (0.005 mm)]	.08” (0.0002 mm) [2 mm (0.005 mm)]	.08” (0.0002 mm) [2 mm (0.005 mm)]
Micrometric feed	0.00004” (0.001 mm)	0.00004” (0.001 mm)	0.00004” (0.001 mm)
Handwheel Straight Infeed	0~0.01” (0~0.35 mm)	0~0.01” (0~0.35 mm)	0~0.01” (0~0.35 mm)
O.D. x Width x I.D.	14”x 2”x 5” (355 x 50 x 127 mm)	14”x 2”x 5” (355 x 50 x 127 mm)	14”x 2”x 5” (355 x 50 x 127 mm)
Speeds (belt type) r.p.m	1,783 rpm	1,940 rpm	1,940 rpm
Swivel Angle	120° (+90° -30°)	120° (+90° -30°)	120° (+90° -30°)
Center Taper	MT 4	MT 4	MT 4
Spindle Speeds (variable) r.p.m	16~450 rpm	16~450 rpm	16~450 rpm
Max. Load of Spindle (tool holder included)	77 lbs (Max length: 6”) [35 Kgs (Max. length: 150 mm)]
Taper Center	MT 4	MT 4	MT 4
Stroke	1” (25 mm)	1” (25 mm)	1” (25 mm)
Swivel Angle	12°	12°	12°
Traverse Speed	2”~157.5”/min (50~4000 mm/min)
Auto. Reciprocate Min. Stroke	0.12” (3 mm)	0.12” (3 mm)	0.12” (3 mm)
Feed of one turn of Handwheel (2 step)	0.8” (0.08”) [20 mm (2 mm)]	0.8” (0.08”) [20 mm (2 mm)]	0.8” (0.08”) [20 mm (2 mm)]
Wheel Spindle	5 HP (3.75 kW) (4 P)	5 HP (3.75 kW) (4 P)	5 HP (3.75 kW) (4 P)
Workhead Spindle	1.07 HP (0.8 kW) (Servomotor)	1.07 HP (0.8 kW) (Servomotor)	1.07 HP (0.8 kW) (Servomotor)
Hydraulic Pump	1 HP (0.75 Kw) (6 P)	1 HP (0.75 Kw) (6 P)	1 HP (0.75 Kw) (6 P)
Wheel Spindle Lubrication Pump	0.24 HP (0.18 Kw) (2 P)	0.24 HP (0.18 Kw) (2 P)	0.24 HP (0.18 Kw) (2 P)
Coolant Pump	0.24 HP (0.18 kW) (2 P)	0.24 HP (0.18 kW) (2 P)	0.24 HP (0.18 kW) (2 P)
Internal Grinding Spindle	1 HP (0.75 Kw) (2 P)	1 HP (0.75 Kw) (2 P)	1 HP (0.75 Kw) (2 P)
Wheel Spindle Lubricant Tank	3.2 gal (12 L)	3.2 gal (12 L)	3.2 gal (12 L)
Hydraulic Fluid Tank	17.2 gal (65 L)	17.2 gal (65 L)	17.2 gal (65 L)
Coolant Tank	26.4 gal (100 L)	26.4 gal (100 L)	26.4 gal (100 L)
Machine Weight	6,614 lbs. (3,000 kg)	7,055 lbs. (3,200 kg)	7,055 lbs. (3,200 kg)

Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

SPECIFICATION	RCG-ST-1620	RCG-ST-1640	RCG-ST-1660
Distance between centers	23.6” (600 mm)	39.4” (1000 mm)	59” (1500 mm)
Swivel over table	16.5” (420 mm)	16.5” (420 mm)	16.5” (420 mm)
Max. Load of Centers	440 lbs. (200 kg.)	440 lbs. (200 kg.)	440 lbs. (200 kg.)
Max. External Grinding Diameter	15” (380 mm)	15” (380 mm)	15” (380 mm)
Swivel angle	± 30°	± 30°	± 30°
Manual Distance	6.3” (160 mm)	6.3” (160 mm)	6.3” (160 mm)
Auto Rapid Advance	1.6” (40 mm)	1.6” (40 mm)	1.6” (40 mm)
Sliding Seat Supplementary Displacement	95 [total 10” (255 mm)]	95 [total 10” (255 mm)]	95 [total 10” (255 mm)]
Min. Setting Unit- graduation	0.0001”” (0.0025 mm)	0.0001”” (0.0025 mm)	0.0001”” (0.0025 mm)
One Turn of Handwheel feed (graduation)	.08” (0.0002 mm) [2 mm (0.005 mm)]	.08” (0.0002 mm) [2 mm (0.005 mm)]	.08” (0.0002 mm) [2 mm (0.005 mm)]
Micrometric feed	0.00004” (0.001 mm)	0.00004” (0.001 mm)	0.00004” (0.001 mm)
Handwheel Straight Infeed	0~0.01” (0~0.35 mm)	0~0.01” (0~0.35 mm)	0~0.01” (0~0.35 mm)
O.D. x Width x I.D.	14”x 2”x 5” (355 x 50 x 127 mm)	14”x 2”x 5” (355 x 50 x 127 mm)	14”x 2”x 5” (355 x 50 x 127 mm)
Speeds (belt type) r.p.m	1,783 rpm	1,940 rpm	1,940 rpm
Swivel Angle	120° (+90° -30°)	120° (+90° -30°)	120° (+90° -30°)
Center Taper	MT 4	MT 4	MT 4
Spindle Speeds (variable) r.p.m	16~450 rpm	16~450 rpm	16~450 rpm
Max. Load of Spindle (tool holder included)	77 lbs (Max length: 6”) [35 Kgs (Max. length: 150 mm)]	77 lbs (Max length: 6”) [35 Kgs (Max. length: 150 mm)]	77 lbs (Max length: 6”) [35 Kgs (Max. length: 150 mm)]
Taper Center	MT 4	MT 4	MT 4
Stroke	1” (25 mm)	1” (25 mm)	1” (25 mm)
Swivel Angle	10°	8°	8°
Traverse Speed	2”~157.5”/min (50~4000 mm/min)	2”~157.5”/min (50~4000 mm/min)	2”~157.5”/min (50~4000 mm/min)
Auto. Reciprocate Min. Stroke	0.12” (3 mm)	0.12” (3 mm)	0.12” (3 mm)
Feed of one turn of Handwheel (2 step)	0.8” (0.08”) [20 mm (2 mm)]	0.8” (0.08”) [20 mm (2 mm)]	0.8” (0.08”) [20 mm (2 mm)]
Wheel Spindle	5 HP (3.75 kW) (4 P)	5 HP (3.75 kW) (4 P)	5 HP (3.75 kW) (4 P)
Workhead Spindle	1.75 HP (1.3 kW) (Servomotor)	1.75 HP (1.3 kW) (Servomotor)	1.75 HP (1.3 kW) (Servomotor)
Hydraulic Pump	1 HP (0.75 Kw) (6 P)	1 HP (0.75 Kw) (6 P)	1 HP (0.75 Kw) (6 P)
Wheel Spindle Lubrication Pump	0.24 HP (0.18 Kw) (2 P)	0.24 HP (0.18 Kw) (2 P)	0.24 HP (0.18 Kw) (2 P)
Coolant Pump	0.24 HP (0.18 kW) (2 P)	0.24 HP (0.18 kW) (2 P)	0.24 HP (0.18 kW) (2 P)
Internal Grinding Spindle	1 HP (0.75 Kw) (2 P)	1 HP (0.75 Kw) (2 P)	1 HP (0.75 Kw) (2 P)

Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

SPECIFICATIONS	AT-2140-G-TW	AT-2160-G-TW
Swing over bed	21” (533 mm)	21” (533 mm)
Swing over cross slide	14” (356 mm)	14” (356 mm)
Distance between centers	40” (1000mm)	60” (2000mm)
Spindle nose	D1-8	D1-8
Spindle bore(max. bar diameter)	3 1/16” (78.5 mm)	3 1/16” (78.5 mm)
Spindle speed	16 steps	16 steps
Spindle speed range	20 – 1,600 rpm	20 – 1,600 rpm
Ranges:	20-25-35-50-65-85-115-150-210- 280-380-500-670-900-1200-1600	20-25-35-50-65-85-115-150-210- 280-380-500-670-900-1200-1600
Length on bed	21” (537 mm)	21” (537 mm)
Width of bridge	21 3/8” (542 mm)	21 3/8” (542 mm)
Cross slide travel	11” (280 mm)	11” (280 mm)
Top slide travel	5 3/8” (137 mm)	5 3/8” (137 mm)
Number of V ways	3 each “V” ways	3 each “V” ways
Bed width	13 ½” (345 mm)	13 ½” (345 mm)
Swing in gap	31” (790 mm)	31” (790 mm)
Gap bed length from faceplate	8” (200 mm)	8” (200 mm)
Quill diameter	4” (102 mm)	4” (102 mm)
Quill center	M.T. 5	M.T. 5
Quill travel	7” (178 mm)	7” (178 mm)
Range of whit worth threads& No. ( )	2-72 T.P.I (45)	2-72 T.P.I (45)
Range of metric threads No.	0.2/14 (39)	0.2/14 (39)
Range of D.P. & No.( )	8-44 (21)	8-44 (21)
Range of M.P. & No. ( )	0.3-3.5 (18)	0.3-3.5 (18)
Longitudinal feed	0.0015-0.04” (0.04-1.0 mm)	0.0015-0.04” (0.04-1.0 mm)
Cross feeds	0.00075-0.02” (0.02-0.5 mm)	0.00075-0.02” (0.02-0.5 mm)
Main motor	12 ½ hp (9 kW)	12 ½ hp (9 kW)
Coolant pump	1/8 hp (0.09 kW)	1/8 hp (0.09 kW)
Length packed	100” (2500 mm)	118” (3000 mm)
Width packed	>44” (1,120 mm)	>44” (1,120 mm)
Height packed	>66” (1,670 mm)	>66” (1,670 mm)
Gross Weight	5,830lbs (2650kg)	6,600lbs (3000kg)

Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

SPECIFICATIONS	AT-2180-G-TW	AT-21120-G-TW
Swing over bed	21” (533 mm)	21” (533 mm)
Swing over cross slide	14” (356 mm)	14” (356 mm)
Distance between centers	80” (2000mm)	120” (3000mm)
Spindle nose	D1-8	D1-8
Spindle bore(max. bar diameter)	3 1/16” (78.5 mm)	3 1/16” (78.5 mm)
Spindle speed	16 steps	16 steps
Spindle speed range	20 – 1,600 rpm	20 – 1,600 rpm
Ranges:	20-25-35-50-65-85-115-150-210- 280-380-500-670-900-1200-1600	20-25-35-50-65-85-115-150-210- 280-380-500-670-900-1200-1600
Length on bed	21” (537 mm)	21” (537 mm)
Width of bridge	21 3/8” (542 mm)	21 3/8” (542 mm)
Cross slide travel	11” (280 mm)	11” (280 mm)
Top slide travel	5 3/8” (137 mm)	5 3/8” (137 mm)
Number of V ways	3 each “V” ways	3 each “V” ways
Bed width	13 ½” (345 mm)	13 ½” (345 mm)
Swing in gap	31” (790 mm)	31” (790 mm)
Gap bed length from faceplate	8” (200 mm)	8” (200 mm)
Quill diameter	4” (102 mm)	4” (102 mm)
Quill center	M.T. 5	M.T. 5
Quill travel	7” (178 mm)	7” (178 mm)
Range of whit worth threads& No. ( )	2-72 T.P.I (45)	2-72 T.P.I (45)
Range of metric threads No.	0.2/14 (39)	0.2/14 (39)
Range of D.P. & No.( )	8-44 (21)	8-44 (21)
Range of M.P. & No. ( )	0.3-3.5 (18)	0.3-3.5 (18)
Longitudinal feed	0.0015-0.04” (0.04-1.0 mm)	0.0015-0.04” (0.04-1.0 mm)
Cross feeds	0.00075-0.02” (0.02-0.5 mm)	0.00075-0.02” (0.02-0.5 mm)
Main motor	12 ½ hp (9 kW)	12 ½ hp (9 kW)
Coolant pump	1/8 hp (0.09 kW)	1/8 hp (0.09 kW)
Length packed	138” (3510 mm)	178” (4520 mm)
Width packed	>44” (1,120 mm)	>44” (1,120 mm)
Height packed	>66” (1,670 mm)	>66” (1,670 mm)
Gross Weight	7,480lbs (3400kg)	9,240lbs (4200kg)

Cylindrical Grinder Republic RCG Series

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Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

Cylindrical Grinder Republic RCG SeriesMulti-Function Cylindrical Grinders

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