Surface Grinder

STP-618 Series

Saddle Type

Feature

3 HP V3 grade spindle motor for powerful output to achieve precision work and better grinding capability.

Cartridge spindle w/4 preloaded class 7(p4) bearings and run-out of taper nose better than 0.000060" T.I.R provides quiet, vibration free operation for better work pieces accuracy.

Manually operated 0.000050" micro down feed and micro cross feed. (STD on STP-618CII, optional on all other models)

Vertical handwheel at the waist level. (STP Only)

The table traverses on linear ball bearings with hardened and ground guide ways to ensure a smooth and easy movement.

Double V cross ways are hand scraped and Turcite-B coated for greater flatness and high wear resistance.

All castings are tempered and stress relieved twice to assure stability of the machine structure and resist deflection under load.

Hardened & ground column ways with cast spindle slide is precision fit for no "hang-up" gravity down-feed.

Indexable table handwheel for ease of operation. (618M only)

Work table flatness shall be within 0.00012".

Grinding Cycles

Cll Grinding mode

Step cross

Step cross

Plunge

Plunge

Crisscross

Crisscross

CXll Grinding mode

Step cross

Step cross

Plunge

Plunge

Crisscross

Crisscross

Slice

Slice

Specification

ModelSTP-618MSTP-1A618STP-2A618STP-618CII
General Capacity
Table Size6" x 18" (150 x 450mm)6" x 18" (150 x 450mm)6" x 18" (150 x 450mm)6" x 18" (150 x 450mm)
Max. Grinding Length19" (480mm)19" (480mm)19" (480mm)19" (480mm)
Max. Grinding Width6" (170mm)6" (170mm)6" (170mm)6" (170mm)
Distance from Table Surface to Spindle Centerline19.3" (490mm)19.3" (490mm)19.3" (490mm)19.3" (490mm)
Standard Magnetic Chuck Size6" x 18" (150 x 450mm)6" x 18" (150 x 450mm)6" x 18" (150 x 450mm)6" x 18" (150 x 450mm)
Longitudinal Movement
Manual Travel20.9" (530mm)20.9" (530mm)20.9" (530mm)20.9" (530mm)
Hydraulic Travel-20" (510mm)20" (510mm)20" (510mm)
Table Speed (infinitely variable)-16-82 fpm (5-52m/min)16-82 fpm (5-52m/min)16-82 fpm (5-52m/min)
Cross Movement
Manual Travel7" (180mm)7" (180mm)7" (180mm)7" (180mm)
Rapid Travel, approx.--38ipm(960mm/min)38ipm(960mm/min)
Automatic Traverse Travel--6-3/4"(170mm)6-3/4"(170mm)
Automatic Traverse Increment--0.02-0.24"(0.4-6mm)0.02-0.24"(0.4-6mm)
Handwheel per Graduation0.001" (0.02mm)0.001" (0.02mm)0.001" (0.02mm)0.001" (0.02mm)
Handwheel per Revolution0.2" (5mm)0.2" (5mm)0.2" (5mm)0.2" (5mm)
Vertical Downfeed
Rapid Travel, approx.---4ipm (100mm/min)
Automatic Traverse Increment---0.0001-0.002" (0.001-0.05mm)
Handwheel per Graduation0.0001" (0.005mm) 0.000050"(0.0001mm)-Option0.0001" (0.005mm) 0.000050"(0.0001mm)-Option0.0001" (0.005mm) 0.000050"(0.0001mm)-Option0.000050"(0.0001mm) micro downfeed
Handwheel per Revolution0.050" (1mm)0.050" (1mm)0.050" (1mm)0.050" (1mm) micro downfeed
Grinding Wheel
Wheel Size (OD x W x B)ø8" x 1/2" x ø1-1/4" (ø203 x 12.7 x ø31.75mm)ø8" x 1/2" x ø1-1/4" (ø203 x 12.7 x ø31.75mm)ø8" x 1/2" x ø1-1/4" (ø203 x 12.7 x ø31.75mm)ø8" x 1/2" x ø1-1/4" (ø203 x 12.7 x ø31.75mm)
Speed (50Hz/60Hz)2850rpm/3450rpm2850rpm/3450rpm2850rpm/3450rpm2850rpm/3450rpm
Motor
Spindle Motor3HP (2.3kw)3HP (2.3kw)3HP (2.3kw)3HP (2.3kw)
Crossfeed Motor--25w25w
Elevating Motor---1/2HP (0.4kw)
Hydraulic Motor--1HP (0.75kw)1HP (0.75kw)
Floor Space
Total Space Required (L x W x H)76" x 43" x 69" (1950 x 1100 x 1770mm)76" x 43" x 69" (1950 x 1100 x 1770mm)76" x 59" x 69" (1950 x 1500 x 1770mm)76" x 59" x 69" (1950 x 1500 x 1770mm)
Weight
Net, approx.1588lbs (722kgs)1588lbs (722kgs)1775lbs (807kgs)1775lbs (807kgs)
Gross, approx.1808lbs (822kgs)1808lbs (822kgs)1995lbs (907kgs)1995lbs (907kgs)
Other
Total Rated Power, approx.3HP (2.3kw)4HP (3kw)4.1HP (3.1kw)4.6HP (3.5kw)
Packing Dimension (L x W x H)58" x 44" x 76" (148 x 110 x 194cm)58" x 44" x 76" (148 x 110 x 194cm)58" x 44" x 76" (148 x 110 x 194cm)61" x 49" x 76" (155 x 124 x 194cm)
ModelSTP-618MSTP-1A618STP-2A618STP-618CII
General Capacity
Table Size6" x 18" (150 x 450mm)6" x 18" (150 x 450mm)6" x 18" (150 x 450mm)6" x 18" (150 x 450mm)
Max. Grinding Length19" (480mm)19" (480mm)19" (480mm)19" (480mm)
Max. Grinding Width6" (170mm)6" (170mm)6" (170mm)6" (170mm)
Distance from Table Surface to Spindle Centerline19.3" (490mm)19.3" (490mm)19.3" (490mm)19.3" (490mm)
Standard Magnetic Chuck Size6" x 18" (150 x 450mm)6" x 18" (150 x 450mm)6" x 18" (150 x 450mm)6" x 18" (150 x 450mm)
Longitudinal Movement
Manual Travel20.9" (530mm)20.9" (530mm)20.9" (530mm)20.9" (530mm)
Hydraulic Travel-20" (510mm)20" (510mm)20" (510mm)
Table Speed (infinitely variable)-16-82 fpm (5-52m/min)16-82 fpm (5-52m/min)16-82 fpm (5-52m/min)
Cross Movement
Manual Travel7" (180mm)7" (180mm)7" (180mm)7" (180mm)
Rapid Travel, approx.--38ipm(960mm/min)38ipm(960mm/min)
Automatic Traverse Travel--6-3/4"(170mm)6-3/4"(170mm)
Automatic Traverse Increment--0.02-0.24"(0.4-6mm)0.02-0.24"(0.4-6mm)
Handwheel per Graduation0.001" (0.02mm)0.001" (0.02mm)0.001" (0.02mm)0.001" (0.02mm)
Handwheel per Revolution0.2" (5mm)0.2" (5mm)0.2" (5mm)0.2" (5mm)
Vertical Downfeed
Rapid Travel, approx.---4ipm (100mm/min)
Automatic Traverse Increment---0.0001-0.002" (0.001-0.05mm)
Handwheel per Graduation0.0001" (0.005mm) 0.000050"(0.0001mm)-Option0.0001" (0.005mm) 0.000050"(0.0001mm)-Option0.0001" (0.005mm) 0.000050"(0.0001mm)-Option0.000050"(0.0001mm) micro downfeed
Handwheel per Revolution0.050" (1mm)0.050" (1mm)0.050" (1mm)0.050" (1mm) micro downfeed
Grinding Wheel
Wheel Size (OD x W x B)ø8" x 1/2" x ø1-1/4" (ø203 x 12.7 x ø31.75mm)ø8" x 1/2" x ø1-1/4" (ø203 x 12.7 x ø31.75mm)ø8" x 1/2" x ø1-1/4" (ø203 x 12.7 x ø31.75mm)ø8" x 1/2" x ø1-1/4" (ø203 x 12.7 x ø31.75mm)
Speed (50Hz/60Hz)2850rpm/3450rpm2850rpm/3450rpm2850rpm/3450rpm2850rpm/3450rpm
Motor
Spindle Motor3HP (2.3kw)3HP (2.3kw)3HP (2.3kw)3HP (2.3kw)
Crossfeed Motor--25w25w
Elevating Motor---1/2HP (0.4kw)
Hydraulic Motor--1HP (0.75kw)1HP (0.75kw)
Floor Space
Total Space Required (L x W x H)76" x 43" x 69" (1950 x 1100 x 1770mm)76" x 43" x 69" (1950 x 1100 x 1770mm)76" x 59" x 69" (1950 x 1500 x 1770mm)76" x 59" x 69" (1950 x 1500 x 1770mm)
Weight
Net, approx.1588lbs (722kgs)1588lbs (722kgs)1775lbs (807kgs)1775lbs (807kgs)
Gross, approx.1808lbs (822kgs)1808lbs (822kgs)1995lbs (907kgs)1995lbs (907kgs)
Other
Total Rated Power, approx.3HP (2.3kw)4HP (3kw)4.1HP (3.1kw)4.6HP (3.5kw)
Packing Dimension (L x W x H)58" x 44" x 76" (148 x 110 x 194cm)58" x 44" x 76" (148 x 110 x 194cm)58" x 44" x 76" (148 x 110 x 194cm)61" x 49" x 76" (155 x 124 x 194cm)

Accessories

Standard Accessories
Diamond Dresser
Splash Guard (except 618M)
Wheel Extractor
8" x ½" x 1¼" wheel and wheel flange
Balancing Arbor
Machine Lamp
Dust Guard
0.000050" Micro downfeed (STP-618CII only)
Optional Accessories
MAGNETIC CHUCKS AND CONTROLS
Electromagnetic chuck
Auto. Demagnetizer
Permanent magnetic chuck
DIGITAL READOUT SYSTEMS
One axis (Elevating) digital readout
Two axis (Z & Y axis) digital readout
COOLANT SYSTEMS
Coolant system w/mag. sep.& paper filter (20L/min, 100L)
Combination coolant & dust collector (50L)
Dust collector
Splash guard
OTHER ACCESSORIES
Manual parallel dressing attachment
Balancing stand
Spare wheel 8" x ½" x 1¼"
Spare wheel flange
Micro down feed (0.000050")
Micro cross feed (0.000050")

PROMOTIONS

PROMOTIONS