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Inventory » Used Equipment » Grinding » Blanchard Grinders » Detail
  • Photo 1 for Blanchard #22AD-42, 42" Vertical Spindle Rotary Surface Grinder W/ A/B PLC
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Blanchard #22AD-42, 42" Vertical Spindle Rotary Surface Grinder W/ A/B PLC

Type: GRINDERS, SURFACE, ROTARY TYPE, (Vertical Spindle) - G8100
Manufacturer: Blanchard
Model Number: 22PLC-42
Description: Blanchard #22AD-42, 42" Vertical Spindle Rotary Surface Grinder W/ A/B PLC
Tag: 16517
Year: 1984
Serial Number: 15584

Specifications

22" Grinding Wheel Diameter
42" Magnetic Chuck Diameter, Approximately 3/8" Chuck Step
44" Swing Inside Water Guards
24" Vertical Range,Standard
3000 LBS. Maximum Load on Chuck
50 HP Grinding Wheel Horsepower
480 Volt /60 Hertz Main Motor
Machine Dimensions: 12'L-R x 57"D x 103-1/2"H
Electrical Cabinet: 73"L-R x 40"D x 91"H Approximate
Approx. Weight: 16,000 lbs.

Remanufactured Blanchard Model 22-42 All Electric Allen Bradley PLC Controlled, Vertical Spindle Rotary Table Surface Grinder
Basic Machine:
Range: 
46" diameter swing inside water guards by 24" high over 42" diameter
magnetic chuck with new segments.  (The grinder can grind to the center of a 48"
diameter part utilizing "step grinding" techniques.

Base and Ways:  Double wall rigid seal, annealed weldment with integral sloping
shelf to catch and discharge coolant and grinding swarf through two openings at
rear of grinder.  A built-in base flushing system running continuously assists with
sludge discharge from base. Replaceable, rectangular, precision ground steel
ways mounted on base.  Spread of ways is 38-1/2".  Full-length steel way covers
provide protection from grinding sludge.

Table Body: Heavy, double wall, ribbed design, cast of close grain iron, carries
chuck.  Rotation drive is through heat-treated spiral bevel gears.  Alloy steel pinion
drives 24-1/2" diameter chuck rotation gear.  Table ways are precision hand scraped.
Low friction, non-metallic, table bearing extends life of chuck bearing and reduces
start-up power requirement.

Magnetic Chuck: Blanchard one-piece steel magnetic chuck, 42" diameter, with
5/8" concentric pole spacing and 2" center hole.  Magnetic chuck uses direct
current only, 115 volts DC, supplied by variable DC power supply.  The DC power
supply, with remote control. provides the feature of infinitely variable magnetic
chucking holding power (0 to 60%) and full power (100%).

Precision flat circular bearing runs submerged in oil in table body.  Workload up to
3000 pounds can be carried on magnetic chuck.

Table Traverse: By rack mounted on underside of table body, with pinion, through a 
worm gear reduction box and direct-coupled high torque reversing motor.  An electric
brake on the motor provides positive stop.

Chuck Rotation:  Infinitely variable chuck rotation speed from 6 to 24 revolutions
per minute.  Chuck rotation is driven by a 5 HP motor controlled from the operator's
panel.  Speed may be changed during the grinding cycle without interrupting the
grinding cycle.

Wheel Head: A ribbed iron casting is the housing for the main spindle motor and 
encloses and aligns the oversized spindle bearings.   The 50 HP main spindle motor
consists of a commercial stator built into the head and a commercial rotor built on a 
large Blanchard spindle with special ventilation.  The anti-friction spindle bearings
are pre-loaded to 1,200 pounds to remove radial clearance and backlash.  Large
head ways are fitted with three tapered gibs running the full length of the head ways.
A manually operated wheel dresser is mounted to the head and provides a means of
artificial wheel wear under control of the operator.  A wheel guard is  standard 
equipment.  

Grinding Wheel Equipment:  Cortland Style Segment Wheel Holder.  Wheel holder uses five CDTL (11-1/4" by 3" by 6") segments per set.

Column: The heavy rigid box section column has precision vertical ways.  A large 
diameter feed screw is mounted between the ways to move the gibbed way wheel 
head.  This design provides as nearly as possible a "one-piece" construction.  There
is no intermediate plate and no loose joints to allow vibration between the head and
column.

Three Point Column Support:  The Blanchard column contacts the base at three
widely spaced points to provide quick, accurate, adjustment of the grinding spindle
relative to the magnetic chuck.  Three heavy bushings are threaded into the column
with calibrated washers to facilitate adjustment. Large hold-down bolts threaded
into the base assure rigidity and provide single unit construction of the head, column
and base to resist deflection under heavy grinding pressures.

Feed System: Electronic "Servo" Feed Systems commanded by the Allen Bradley PLC

Water Guards: 7 gauge sheet steel water guards enclose the grinding area to 
confine coolant and control mist.  The table water guard moves with the table to 
reduce the open area during grinding for better mist control.  Interlocking doors
open to provide straight-in loading of work parts.  The column ways are protected in
the grinding area by telescoping steel guards.

Coolant System: "Dry" base design requires coolant storage outside of base.
Minimum 250 gallons recommended to allow optimum operation of grinder. No
coolant pumps or control for pumps are supplied as standard equipment.  Quick
acting water valves, a solenoid valve and a wash hose are standard equipment.

Lubrication: Table and chuck bearing and table traverse gear box have oil 
reservoirs.  An Automatic TRABON grease lubrication is provided for lower spindle
bearing, column ways, feed screw, wheel dresser and base ways.

Electrical Equipment

Motors:
50 HP 720 RPM Built-in main Spindle Motor with Soft-Start and Dynamic Braking
 5 HP TEFC Chuck Rotation Motor AC variable frequency spindle drive motor
AC servo motor for Head Feed and Rapid Traverse
AC servo motor with an electric brake for Table Traverse

Control Panel:  Control Panel: Machine mounted NEMA 12 enclosure contains reduced 
voltage starting and braking unit for wheel motor.  Cabinet also contains programmable
controller, cycle controls, control transformer to provide 115 volt push button circuit
and non-fused disconnect switch interlocked with door.  Machines comply with National
Fire Protection Associates Standard No. 79  for Metalworking Machine Tools and Plastics
Machinery.

Note:
1.  F.P. Miller Company recommends that an independent, driven, ground rod be supplied 
     for this equipment.
2.  Supply voltage must be maintained within +/-5% of rated voltage.

Other Electrical

Equipment:
Operator's push button control station set up station, sensitive load meter in wheel
motor circuit to indicate the load on the spindle motor, limit switches,
and DC control pilot light.

Notes:

General:
An Operator's manual with parts catalog, a Column adjusting wrench and an
Outside shuck ring are supplied with the grinder.

Paint:  Standard colors are Swiss White, Steel Blue, Machine Tool Gray or Vista Green.
When a special color is requested please contact factory for extra charge to comply.

Electrical Requirements:  
3 Phase, 60 Hertz, 460 Volts
50 HP -- 65 KVA

Approximate Floor Space and Height:  Length: 140"; Width: 69"; Maximum
height: 109"; Minimum height:  105"; Height of magnetic chuck from floor:  38".

Control panel is approximately 72" x 18" 72".

Weight:  Grinder with standard equipment:  17,800 pounds.  Domestic shipping
  weight:  18,300 pounds.

TERMS:  30% with purchase order
60% after acceptance run-off at F.P. Miller Company viewed by customer.
10% Net 30 Days after delivery of the machine to the customer.
 
Thank you for choosing F. P. Miller Company to provide you with a quote on a totally rebuilt #22AD-42 Automatic Blanchard Rotary Surface Grinder. The work will consist of a mechanical rebuild and Allen Bradley PLC, drives and programming which includes specific items as follows:

1)MACHINE DIS-ASSEMBLY:
a)Completely disassemble machine & inspect parts and castings.
b)Clean and wire brush all parts

2)TABLE AND TABLE SUPPORT WAYS:
a)Machine as required.
b)Precision Scrape, fit the table support ways to the table ways.
c)Installation of Moglice wear material in cup if needed.
d)Grind magnetic chuck hardened bull gear

3)CARRIAGE AND BASE WAYS:
a)Re-grind hardened base ways (Replace if needed)
b)Precision scrape and fit carriage to base ways.
c)Installation of Cast Iron wear strips if needed

4)VERTICAL SLIDE AND COLUMN WAYS:
a)Machine as required
b)Precision scrape and fit the vertical slide ways to the column ways including the gibs.
c)Replace or rebuild Elevating Screw and Nut
d)Installation of Cast Iron wear strips if needed.

5)CARRIAGE AND TABLE DRIVE MECHANISMS
a)Inspect and rebuild carriage drive assembly (including replacing bearings and seals).
b)Replace Rack and Pinion
c)Inspect and rebuild table drive assembly (including replacing bearings and seals).

6)HEAD FEED MECHANICAL MECHANISM:
a)Inspect and rebuild head feed as required.
b)Inspect Feed worm gear and pinion, remove backlash.

7)SPINDLE UNIT COMPLETE:
a)Disassemble the spindle unit, clean and evaluate.
b)Check spindle taper fit to wheel collar taper, and repair if required.
c)Replace the upper and lower spindle bearings
d)Clean, bake, and recoat windings. (Main Spindle Motor)
e)Reassemble the spindle unit, and test.

8)ELECTRICAL FEED MOTORS:
a)Disassemble feed motors, clean and evaluate.
b)Replace bearings

9)LUBRICATION SYSTEM:
a)Install Automatic oil lubrication system
b)Remove all lube lines on the carriage, base and table.
c)Replace all lube blocks and clean oil ports on the carriage, base and table.
d)Re-pipe with all new lines and fittings, the carriage, base and table.

10)GREASE SYSTEM:
a)Install new automatic grease system
b)Replace all lube lines on the column ways.
c)Replace  all lube blocks and clean oil ports on the column ways.


11)ELECTRICAL:
a)All new wiring on machine
b)New magnetic controller
c)All new limit switches and push button switches (placed to your configuration)
d) Allen Bradley PLC Control System
e)Install soft start for table
f)Updated Schematics
g)Updated manuals

12)MAGNETIC CHUCK:
a)Meg Magnetic Chuck/Rewind if Necessary
b)Install New Magnetic Chuck Controls

13)GUARDING AND COOLANT LINES:
a)Repair and replace guarding as required
b)Fit to machine
c)Install new coolant Lines and External Clean Out Hose

14)PAINT:
a)Sand entire machine to original machine surface.
b)Clean.
c)Prime and paint grey. Will accommodate customers paint specs if possible

15)REASSEMBLY OF MACHINE COMPLETE AND TEST:

REQUIREMENTS:

1. CONTRACTORS RESPONSIBILITY:
F. P. Miller will be responsible for furnishing all services, labor, parts and materials necessary to rebuild the machine as described above.

2. DISASSEMBLY AND INSPECTION:
-All areas and items of rebuild will be completely dismantled to basic parts and castings.
-All parts and castings will be thoroughly inspected for defects.

3. REUTILIZATION OF PARTS:
-All parts that will be reused will be in such condition to assure proper part function and fit. This applies to parts which are used as is, as well as those that are repaired, or replaced.

4. REPLACEMENT PARTS:
-Replacement parts will be OEM or a suitable substitute.

5. BEARINGS:
-All bearings associated with spindle, regardless of condition, will be replaced with new bearings of the same type and precision class or better.

6. SEALS AND GASKETS:
-All seals and gaskets will be replaced with new seals and gaskets of a type equal to or better than original quality.

7. FASTENING DEVICES:
-All fastening devices will be inspected and all defective devices will be replaced.

8. ACCEPTANCE TEST:
-The machine will be run off at F. P. Miller Company with testing witnessed by customer.

9. DOCUMENTATION:
-Two complete sets of machine documentation covering
-Electrical diagrams, maintenance and operating procedures, will be provided to customer

10. TRANSPORTATION:
-It is the customers responsibility for transportation from F. P. Miller Company, we can assist with arrangements upon request.
-F. P. Miller will need Advanced Notice of Shipping Arrangements, prior to picking up machine, for proper time to package and prep machine

11. DELIVERY:
-Delivery of the machine will be approximately 22-24 weeks from the receipt P.O. and Down Payment and is dependent on availability of replacement parts and current shop schedule. The delivery will be held unless the lead-time of purchased items causes a delay.

12. WARRANTY:
F. P. Miller Company warrants the rebuild of this machine against defective materials and workmanship. The warranty terminates (12) months or 2000 operating hours, whichever occurs first, from delivery (some regional restrictions do apply). This applies only if the machine has been installed correctly and used in normal and proper manner under recommended operating conditions.  Note: Warranty does not cover magnetic chuck unless it has been rewound during re-manufacturing process (see options below)

AVAILABLE OPTIONS:
Resurface Magnetic Chuck
Rewind Magnetic Chuck
Set up and run off in customers facility
Stainless Steel Water Guards
Coolant System

13. TRAINING:
F. P. Miller offers abbreviated training for operators at the F.P. Miller Company facility during run-off at no charge.  The training will cover setup, operation, and electrical/mechanical maintenance and is completed in approximately two days.

Note: Machine ships with new leveling pads


TERMS: 30% with purchase order; 60% after acceptance run-off at F. P. Miller Company viewed by customer; 10% Net 30 Days after delivery of the machine to the customer upon approved credit.