GY 3300 Self Centering Chucks

Single Guide Master Top Jaws With D1 Plate Type

Engineered for consistent quality and a longer operational life, the GY 3200 Self-Centering Lathe Chuck features a robust Single Guide Master Top Jaw design. Built to handle demanding machining tasks, these chucks offer exceptional versatility and precision.

Key Features

Construction & Material Specifications
Our self-centering lathe chucks are engineered for high-precision performance and long-term industrial use.Equipped with D1 Type Plates (Camlock) for quick-change efficiency.
    • Premium Chuck Bodies: Available in three configurations to match your RPM and durability requirements:
      • High-Tensile Cast Iron: Alloyed with Chromium, Nickel, and Manganese for superior wear resistance (Hardness: 210 BHN).
      • SG Iron (500/7 Grade): Designed for high-speed operations and extended service life (Hardness: 210 BHN).
      • Nickel-Chrome Alloy Steel: Features hardened and ground jaw ways for maximum accuracy and high-RPM stability (Hardness: 45 HRC).
    • Generous Through-Hole: Designed with large bore diameters to accommodate bar stock and long workpieces easily.
    • Precision Scroll: Drop-forged from high-tensile alloy steel, precision machined, and hardened to 35 HRC for consistent centering accuracy.
    • Hardened Jaws: Constructed from low-carbon alloy steel, case-hardened to 62 HRC, and ground on both sides to ensure a smooth fit and perfect pitch.
    • Durable Pinions: Made from specialized alloy steel and case-hardened to 50 HRC for high torque resistance.
    • Included Accessories: Every chuck includes a high-strength operating key and a full set of mounting bolts (3, 4, or 6 pieces).
    • Precision Jaw Systems: Available in both 3-jaw and 4-jaw configurations to provide superior grip and centering accuracy.
    • Extensive Size Range: We offer a comprehensive selection of sizes, from compact 80mm (5″) units up to heavy-duty 400mm (15.3/4″) chucks.

Accessories Included

Every Chuck comes ready for immediate setup with a comprehensive set of standard accessories:
  • 1 Set of Outside Hard Solid Jaws
  • 1 Set of Inside Hard Solid Jaws
  • 1 Pc. Chuck Operating Key
  • 1 Set of Mounting Bolts
Looking for more flexibility? Optional accessories including Soft Solid Jaws. are also available to customize your setup.

Applications

Self Centring Lathe Chucks are geared scroll chucks for use on lathes, rotary tables, dividing heads, milling machines etc.
GY 2300 Model Numbers
Chuck Size (MM) Chuck Size (Inches) Short Taper Through Hole (mm) C.I. Body S.G. Body Steel Body
3 Jaw 4 Jaw 3 Jaw 4 Jaw 3 Jaw 4 Jaw
125 5″ D1-4 32 11331254 11341254 21331254 21341254 31331254 31341254
160 6 ¼” D1-4 42 11331604 11341604 21331604 21341604 31331604 31341604
160 6 ¼” D1-5 42 11331605 11341605 21331605 21341605 31331605 31341605
200 8″ D1-4 55 11332004 11342004 21332004 21342004 31332004 31342004
200 8″ D1-5 55 11332005 11342005 21332005 21342005 31332005 31342005
200 8″ D1-6 55 11332006 11342006 21332006 21342006 31332006 31342006
250 10″ D1-6 76 11332506 11342506 21332506 21342506 31332506 31342506
250 10″ D1-8 76 11332508 11342508 21332508 21342508 31332508 31342508
315 12 ½” D1-6 105 11333156 11343156 21333156 21343156 31333156 31343156
315 12 ½” D1-8 105 11333158 11343158 21333158 21343158 31333158 31343158
400 15 ¾” D1-8 136 11334008 11344008 21334008 21344008 31334008 31344008
400 15 ¾” D1-11 136 113340011 113440011 213340011 213440011 313340011 313440011
Technical Specification
Size 125mm 160mm 200mm
Taper Nose D1-4 D1-4 D1-5 D1-4 D1-5 D1-6
A 125 160 160 200 200 200
B 63.513 63.513 82.563 63.513 82.563 106.375
C 32 42 42 55 55 55
D 56 65 65 75 75 75
E 97 109 109 121 121 121
F 21 22 25 22 25 28
G 60 71 71 85 85 85
H 13 13 15 13 15 16
J M 8 M 10 M 10 M 10 M 10 M 10
P.C.D K 108 140 140 176 176 176
Tol. on K ±0.25 ±0.30 ±0.30 ±0.30 ±0.30 ±0.30
L 16 19.05 19.05 22.25 22.25 22.25
M M 8 M 10 M 10 M 10 M 10 M 10
N 5 5 8 5 8 12
P 117 117 146 117 146 181
R M10x1.0 M10x1.0 M12x1.0 M10x1.0 M12x1.0 M16x1.5
S 15.9 15.9 19 15.9 19 22.2
Size of Sq. Key 9 11 11 11 11 11
Technical Specification
Size 250mm 315mm 400mm
Taper Nose D1-6 D1-8 D1-6 D1-8 D1-8 D1-11
A 250 250 315 315 400 400
B 106.375 139.719 106.375 139.719 139.719 196.869
C 76 76 105 105 136 136
D 85 85 94 94 105 105
E 139 139 152 152 180 180
F 31 31 35 35 35 37
G 100 100 115 115 136 136
H 16 18 16 18 18 20
J M 12 M 12 M 16 M 16 M 16 M 16
P.C.D K 224 224 286 286 362 362
Tol. on K ±0.35 ±0.35 ±0.40 ±0.40 ±0.40 ±0.40
L 27 27 31.75 31.75 38.1 38.1
M M 12 M 12 M 12 M 12 M 16 M 16
N 12 12 12 12 12 12
P 181 225 181 225 225 298
R M16x1.5 M20x1.5 M16x1.5 M20x1.5 M20x1.5 M22x1.5
S 22.2 25.4 22.2 25.4 25.4 30.2
Size of Sq. Key 14 14 14 14 17 17