Drill Presses - Delta 15-331 Drill Press - W W Thayer Company

Delta 15-331 Drill Press - Delta

Delta 15-331 Drill Press - Drill Presses

Model 15-331
Complete 15" Production Drill Presses, 6" Stroke. All models include belt and pulley guard, belt and motor pulley (supplied wit 5/8" bore unless 1/2" bore is specified), self-locking depth stop, depth gage, 65 -104 self-ejecting chuck key, motor and controls (except Nos. 15-230 and 15-260, which do not include motor and controls). Production-table floor models include No. 15-008 Table Raising Mechanism.

• Extra-large spindle bearings "6 PLUS 6" and "VS6" spindle and spindle pulley are supported by four over-sized, pre-loaded, lubrcated-for-life ball bearings. Massive quill is a full 2" diameter. "VS6" has the same excellent construction, PLUS an extra bearing below the spindle pulley. This fine combination of features assures freedom from chatter, long, maintenance-free life and maximum pressure at the drill point.
• Wide, test-proven speed range gives you a true 10-to-1 speed ratio. You get the exact speed you need for every drillingjob on any material- 450 to 4700 rpm with a 1725 rpm motor and 300 to 3100 with an 1140 rpm motor.
• Quick belt tension release is provided by the pivoting motor mounting plate which has a reverse, self-locking taper on the spring loaded, rubber-tipped plunger that quickly restores correct belt tension.
• Extra-long quill travel gives the extra depth you need for deep-hole jobs like skip and gang drilling... PLUS, the extra stroke required for clearing jigs and fixtures.
• Six speeds offer unbelievably wide range of speeds with a low-cost 1725 rpm motor- 425, 600, 1100, 2050, 3900 and 5500 rpm- 11.8 to 1 speed ratio. You can choose an extra-slow speed for drilling very hard materials... an extra-fast speed for working soft materials... or an optimum speed for any size bit material.
• Efficient variable-speed drive lets you select any spindle speed instantly while machine is running. A self-locking cam, plus a "snubber" feature, hold speed settings constant under all load conditions. Proper belt tension is automatically maintained for full power transmission.

Model Number
• 15-331
Motor Voltage
• 115/230
CAPACITIES
• Key chuck(w/std. Jacobs #33 taper): 1/2"(13 mm)
• Diameter hole in cast iron: 5/8"(16 mm)
• Diameter hole in steel: 1/2"(13 mm)
QUILL
• Stroke: 6"(152 mm)
• Diameter: 2"(51 mm)
• Spindle Speeds ("6 PLUS 6"):
With 1725 rpm motor: 425, 600, 1100, 2050, 3900 and 5500 rpm
With 1140 rpm motor: 280, 395, 725, 1355, 2575 and 3635 rpm
SPINDLE SPEEDS ("VS6")
• With 1725 rpm motor: 450 to 4700 rpm
• With 1140 rpm motor: 300 to 3100 rpm
COLUMN
• Wall thickness: 5/32"(4 mm)
• Diameter: 2 3/4"(70 mm)
TABLE TILT
• Standard: 90° L and R
TABLE-WORKING SURFACE, GROUND
• Standard: 11" X 14"(279 X 356 mm)
• Production (overall): 15 1/2" X 21 1/2"(394 X 546 mm)
• Production (inside of coolant trough): 12" X 18"(305 X 457 mm)
BASE WORKING SURFACE
• Bench-type, ground, (9/16" T-slots on 8" centers): 10 1/4" X 12 3/4"(260 X 324 mm)
• Bench-type, ground, (with coolant trough): 14" X 16"(356 X 406)
• Floor-TYPE, 9/16"(14.29 MM) T-slots on 8"(203.2 mm) centers: 11 1/4" X 14"(286 X 356 mm)
OVERALL DIMENSIONS
• Bench model(with tilting table):
Height: "6 PLUS 6"-40"(1016 mm) "VS6"-42 1/2"(1080 mm)
Width: 14"(356 mm)
Front to rear: "6 PLUS 6"-25 1/8"(638 mm) "VS6": 217 7/8"(708 mm)
• Floor model:
Height: "6 PLUS 6"-71 1/2"(1816 mm) "VS6"-74"(1880 mm)
Width (tilting table): 15 1/2"(394 mm)
Width (production table): 21 1/2"(546 mm)
Front to rear: "6 PLUS 6"-26"(660 mm) "VS6" 26 7/8"(708 mm)
MOTOR
• Accomodates NEMA 56 frame motors.
Quill Tavel
• 6"
Type
• Floor Model Standard Tilting Table
Step Pulley or Var. Speed
• Variable Speed
Weight
• 241 Lbs.
Motor
• Accomodates NEMA 56 frame motors.
Motor Control
• Push-Button Switch Only
Motor Enclosure
• TEFC
Hertz And Motor rpm
• 60-1725

Delta 15-331 Drill Press Literature

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