weldon grinders

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CNC Grinders  |  Robotic Automation  |  Bakery Automation

  1632/1612 Gold

Weldon Solutions CNC Grinders

Ultimate Versatility

The 1632 Gold and 1612 Gold are the ultimate in CNC cylindrical grinders with OD/ID and non-round capabilities. These machines can automatically grind diameters, tapers, chamfers, radii, shoulders, and contours in one set-up and one continuous operation. The Gold grinders feature an innovative shear damping base design which provides superior damping, greater thermal stability, and improved static and dynamic stiffness.

The two models are customized to fit specific applications and are differentiated by a 12" or 32" between centers length and corresponding footprint. Both feature a FANUC CNC control. Available options include a programmable "C" axis work-head for non-round grinding, a power-operated swingdown ID system, and various wheel dressers.

Download a PDF of our 1632/1612 Gold Brochure

Read our latest 1632/1612 Gold Case Studies:


FANUC model 32i B CNC Control with Color LCD
160 meters part program storage, 63 PGMS
Shear Damper machine base
Precision cross-roller linear way system
Low inertia break-away coupling, X axis
Automatic Trabon lubrication system
Heavy-duty live spindle workhead, 6A2, #5 MT center
Servo work drive, 5HP, 0 to 600 RPM
Full Enclosure
Variable speed wheel drive with dynamic braking
Air conditioned electrical panel
Work area lighting
Workhead mounted diamond adapter and single point diamond
Wheel guard and hood assembly
Coolant plumbing and bed-wash system
Grinding wheel and hub
Set-up tools

General Specifications

Maximum work swing: 16 "
Maximum distance between centers (1612): 12"
Maximum distance between centers (1632): 26"
Worktable travel (1612): 26"
Worktable travel (1632): 32"

Heavy-duty, preloaded precision antifriction bearings
Spindle nose (ASME Standard): 6" A2
Center taper: #5 Morse
Through-hole diameter in spindle for draw bars and aire tubes: 1.0625"
Spindle speed range is indefinitely variable and programmed by percentage w/ manual speed override located on operator control station: 0-800 rpm
Maximum runout: .000050"
Motor, FANUC AC servo drive: 5 hp

Angular contact ball bearings which allow lateral loading while contouring with wheel edge.
Motor: 15 hp, T.E.F.C.
Wheel speed variable RPM: 8500 SFPM (nominal)
Maximum OD wheel diameter: 16"
Maximum wheel width: 3.0"

Center taper: #5 Morse
Quill retraction (manual lever): 1.5"

Table Drives
FANUC AC digital servo drives: 1.9 hp
Command resolution, least programmable increment: 0.000010"
Position feedback resolution: 0.0000010"
Precision ground preloaded ballscrews on Z-axis
Way construction: hardened and ground cross rails
Bearings, preloaded: cross-roller

Wheel Spindle: Permanent grease-packed
Workhead spindle: Permanent grease-packed
Ballscrews and rollerscrew: Automatic lube oil
Ways: Automatic lube oil
Safety detect interlock to prevent cycling of operation if low air pressure or low oil level is sensed
Automatic programmed cycle to lubricate machine when started up

Electrical Specifications
Complete tools and electrical equipment wired in accordance with IEC electrical standards for metalworking machine tools
Standard Voltage: 460 volts, 3-phase, 60 Hertz, AC
(any other voltage must be referred to the factory for price and delivery)

Pneumatics (air moisture: 70° F. dew point maximum)
Air Pressure: 80 psi
Air Volume: 5 SCFM
Note: System requires a filtered and dry air source

Coolant System
Machine is set up to funnel coolant out to an optional coolant filter or tank system via sheet metal trough. All necessary piping and solenoids for coolant control from he machine control are provided.

CNC Control Specifications - FANUC 32i B
Manual pulse generator
Full linear and circular contouring and positioning
FANUC and AC digital servo systems
Direct RPM programming or constant surface feet per minute
10" high-resolution color LCD
Macro subroutines
Automatic recognition of EIA or ISO coding
Decimal point programming
Absolute/Incremental programming
RS 232 interface

Machine Dimensions and Construction
Width (1632): 103"
Width (1632): 131"
Depth: 127"
Depth for shipping, pendulum swung in: 93"
Height: 85"
Weight: 15,500 lbs.
Construction: welded steel Shear Damper™
Foundation: 6" concrete floor required
Three-point antivibration suspension system requiring no floor attachment.