Reference Number: 136504

Blanchard 18A-2 Twin Head Vertical Surface Grinder
 
 S/N: 15421         New:  1985
 
 Equipped With:
 40" Plaintable (Non-Magnetic Table)
 20 Station Fixture
 36" Vertical Range
 Extended Capacity Under Wheel
 (2)  30 HP Spindle Motors
 (2) 18" Diameter X 12" I.D. x 5" Tall Solid Grinding Wheels
 "Reeves" Variable Speed Drive for the Table 
 Dry Base
 3/60/460 Volt Electrics
 
 
 Catalog Specifications:
 Designed for high production of small parts (they handle 
 many larger parts, too)  The 18A single-spindle and 18A2
 two-spindle automatic surface grinders combine exceptional
 accuracy, speed and versatility with ease of operation.
 They grind continuously with wheels set and automatically
 maintained at fixed heights.
 
 The 18A finishes one surface of the work in a single pass
 under one wheel.  Both rough grinding and finish grinding
 of one surface are accomplished in a single pass through
 the two wheels of the 18A2 - there's no compromise between
 roughing and finishing, such as choice of wheels, etc.
 With both machines, advanced design reduces manual operation
 to a minimum.  The operator merely loads work onto a magnetic 
 chuck or into an automatic clamping fixture/ dial loaders are 
 often used to speed the loading operation onto magnetic
 chuck.  Unloading is usually automatic, and attachments can
 be supplied for demagnetizing and washing the work as it
 leaves the machines.
 
 Like all Blanchard automatic surface grinders, the 18A and 
 18A2 can be equipped with a wide variety of Blanchard- 
 designed-and built automatic, semi-automatic and magnetic
 work-holding fixtures to greatly extend the machines' 
 capabilities.  Pieces of almost any shape or material
 within the size range of the machines, and which have
 an exterior flat, surface to be machined, can be ground
 precisely and economically.
 
 A 20-station fixture automatically clamps and un-
 clamps the assembled connecting rods and caps.  Both sides
 of both ends are ground parallel to limits of +/- .0005".
 Stock removal is .015" per side. 700 pieces (1400 surfaces)
 are ground per hour.
 
 Connecting rods are manually loaded and un-loaded,
 but automatically clamped and un-clamped in a 24 station
 fixture designed and built by Blanchard.  The rods are
 ground on the joint surface to limits of +/- .0005" at the
 rate of 1180 per hour.  Stock Removal is 0.15"
 
 Here are some of the reasons why the 18A2 provides 
 Superior performance
 
 High Accuracy - Heavier columns and heads, and exceptionally
 ridgid base, make possible close limits of size and flatness
 
 Easy Accessibility - Sliding aluminum panels give quick,
 unobstructed access to wheels, wheel dressers, water
 nozzles, and fixture or chuck.  Convenient push-button
 controls provide rapid raising and lowering of heads
 and table rotation for easy set-up
 
 Dry Base - Sludge and coolant flow from inclined surface
 under table to outside tank, seperator or central
 system.  No coolant or sludge is held in the base.
 
 Convenient Control - Handy push buttons permit ease
 of set-up and operation.  When wheels need replacement,
 a warning light glows at operators station; shortly
 afterward, the machine stops automatically, on the 18A2,
 feed hand-wheels are duplicated on opposite sides of each
 column for convenience while setting up.  Controls are
 interlocked for safety.
 
 Power Range - Spindle motors are available rated at 30, 40 
 or 50 HP, continuous duty
 
 3-Point Support - Heavy box-section columns are rigidly 
 secured to bases at three adjustable, widely spaced
 points.  Thus, the spindle can be brought square with the
 chuck at any time.
 
 Automatic Lubrication - Centralized greasing and oil
 reservoirs provide simple, positive lubrication.
 
 Internal Coolant - In addition to the coolant furnished
 through the outside nozzle, wheels are supplied coolant
 internally through the faceplate.  this assures adequate,
 uniform coolant to work of any shape.
 
 
 Work Table:
 A plain cast-iron table, 43" outside diameter, 26" inside diameter.
 
 Grinding Wheel:
 18" Diameter x 5" deep x 10" hole (18" x 5" x 10") or
 18" diameter x 5" deep x 12" hole (18" x 5" x 12"), 
 usable depth 4"
 
 Feed:
 Each wheel head has vertical down feed by hand or
 power, with power down feed controlled by a seperate
 wheel control caliper for each grinding head. Each
 wheel head has a motor-driven raising and lowering
 bush-button control.
 
 Standard Equipment:
 Two 30 HP Foot-Type spindle motors mounted on wheel
 heads; one 2 HP motor mounted on base for table
 rotation; two 3/4 hp traverse motors 40" single pass
 magnetic chuck or 43" plain table.  Water-guards, 
 piping, coolant discharge chute.  Two wheel control
 calipers, two ammeters wired in wheel motor circuits.
 Control panel containing line start contactors with
 thermal overload protection for all motors, with 
 115 volt control circuit.  (all electrical equipment
 to 1967 J.I.C. general purpose machine tool
 standards.)
 
 
 * INSPECT UNDER POWER IN OUR HARRISON, N.J. WAREHOUSE **
 ** SUPERB CONDITION & APPEARANCE **