Hand Scraped Coated Ways

All Parker Majestic reciprocating table surface grinders feature hand scraped coated ways. Hand scraped ways provide maximum bearing area promote good oil flow and a long, accurate life. Bearing material is bonded to the ways for an extremely low coefficient of friction, allowing the table to begin moving without "stick-slip." This coating also reduces the wear on the cast iron portions of travel ways. The "V" and flat way construction maintains an excellent fit over the life of the machine.

Precision Heavy Duty Spindles
Parker Majestic grinding spindles benefit from our more than 73 years of experience in manufacturing all types of precision spindles. The spindles are accurate and durable. Every spindle is balanced to laboratory precision. Both direct drive motorized and belt drive spindles are available with variable speed options.

Reciprocating Table Feed
A handwheel in conjunction with stainless steel tapes wound around steel drums moves the table. This system gives a better finish than the more common gear and rack type drives. The table moves on flat and "V" type ways which provide maximum usable bearing area. Table travel is approximately 3" (75mm) per revolution of the handwheel.

Cast Iron Construction
All major machine components are made of high quality rigid cast iron. This stable machine structure plus the hand scraping provides many years of accurate operation long after other grinders are worn out.

Ease of Operation
Handwheels on Parker Majestic 6" x 18" and 8" x 18" surface grinders are located at the operator’s waist level for operating ease. A pushbutton operated drive motor moves the grinding wheel and spindle up and down for rapid positioning.

Lubrication
Parker Majestic spindles are grease packed with lifetime grease. A metered oil delivery system lubricates the slides and ways. A pump is conveniently located for the machine operator to pull a handle once a day to maintain proper lubrication. An optional electric pump is available.

Crossfeed Saddle Lock
This feature is standard equipment on all 6" x 18" and 8" x 18" surface grinders and enables the machine operator to accurately position the work in relation to the grinding wheel and to lock the crossfeed without resorting to unwieldy clamps. The "non-influence" type lock is a real timesaver.

Saddle Type Crossfeed
The saddle carrying the worktable moves on double V-type ways by means of a precision lead screw and nut. The graduated vernier dial segment permits crossfeed movements down to .0001" (metric graduations also available). A knurled knob at the center of the handwheel can be loosened for setting the main graduated dial to any point desired.

Elevating Handwheel
One revolution of the controlling handwheel causes the spindle to elevate .010". Each graduation of the handwheel has large linear spacing and each space indicates a vertical spindle movement of only .0001" (metric graduations also available).

Specifications for Surface Grinders	6 x 18	8 x 18
Table Travel	19"	19"
Cross Feed Travel	7"	8"
Max Height - Table Top to Spindle Center	20" (500 mm)	20" (500 mm)
Overall Height	72" (1.9 m)	72 " (1.9 m)
Floor Area	38" x 72"	38" x 72"
Approximate Weight	2600 lbs.	2800 lbs.
Precision Capabilities Within:
0.00010"	Flatness over entire chuck surface
0.00020"	Column squareness to table surface
0.00050"	Table to saddle squareness in 6.00"
8 RMA finish
Specifications subject to change