GY 3200 Self Centering Chucks

Single Guide Master Top Jaws With A2 PlateType

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 A2 Type Plates for specialized spindle noses.
    • 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 3200 Model Numbers
Chuck Size (MM)Chuck Size (Inches)Short TaperThrough HoleC.I. BodyS.G. BodySteel Body
3 Jaw4 Jaw3 Jaw4 Jaw3 Jaw4 Jaw
1255″A2-432112312541124125421231254212412543123125431241254
1606 1/4″A2-442112316041124160421231604212416043123160431241604
1606 1/4″A2-542112316051124160521231605212416053123160531241605
2008″A2-455112320041124200421232004212420043123200431242004
2008″A2-555112320051124200521232005212420053123200531242005
2008″A2-655112320061124200621232006212420063123200631242006
25010″A2-676112325061124250621232506212425063123250631242506
25010″A2-876112325081124250821232508212425083123250831242508
31512 1/2″A2-6105112331561124315621233156212431563123315631243156
31512 1/2″A2-8105112331581124315821233158212431583123315831243158
40015 3/4″A2-8136112340081124400821234008212440083123400831244008
40015 3/4″A2-11136112340011112440011212340011212440011312340011312440011
Technical Specification
Size 125mm 160mm 200mm
Taper Nose A2-4 A2-4 A2-5 A2-4 A2-5 A2-6
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 23 22 23 26
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 6 5 6 8
P 108 108 133 108 133 165
R 14.7 14.7 16.3 14.7 16.3 19.45
S 6.5 6.5 6.5 6.5 6.5 6.5
T 12 12 12 12 12 14
U 82.6 82.6 104.8 82.6 104.8 133.4
Size of Sq. Key 9 11 11 11 11 11
Technical Specification
Size 250mm 315mm 400mm
Taper Nose A2-6 A2-8 A2-6 A2-8 A2-8 A2-11
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 28 30 32 32 34 36
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 16 M 16 M 16 M 16
N 8 8 8 8 8 10
P 165 210 165 210 210 280
R 19.45 24.2 19.45 24.2 24.2 29.4
S 6.5 8 6.5 8 8 10
T 14 18 14 18 18 20
U 133.4 171.4 133.4 171.4 171.4 235
Size of Sq. Key 14 14 14 14 17 17