2003 Okamoto Linear 6-18 Surface Grinder

Up for sale is this 2003 Okamoto Linear 6-18B 6″ X 18″ surface grinder. This is in nearly unused condition and has to be seen to be believed. This came from a technical college that closed its shop program. The spindle is whisper quiet on this machine and the paint is in amazing condition. This still retains all the original hand scraping on the dual V ways of the saddle. This is a dual voltage machine and can be set up on 230V or 460V 3 phase (wired for 230V currently). This is equipped with a Kanetsu 6″ X 18″ magnetic chuck. In addition, this has the coolant package with additional guarding and coolant tank. Also included are the 4 cast iron leveling pads with threaded adjusters. To purchase new this machine would cost over $18,000!

L6-18B Base Grinder                                       $15,800
Coolant package with splash guard             $1,950
Kanetsu KMT-A chuck                                    $1,170

This machine is equipped with an automatic lubrication system so there is no need to pump a lube pump. This features a hand scraped dual V way saddle, double walled column construction and heavily ribbed Meehanite castings for added rigidity. This is a roller way table that is belt driven for extra smooth operation.

I will palletize and ship this machine freight, please ask for a quote. Local pick-up is available as well. The grinder is powered up and available to test in my shop at any time. In person Inspections are welcome. This is available for immediate sale.

All sales are “As-Is” FOB New Berlin, WI 53151 freight collect (buyer is responsible for all freight costs but we are happy to assist in making arrangements). Payment to be made by cash, check or wire transfer.

I will help in any way I can to assist in transportation of this machine. Shipping weight is approx. 2200 pounds and shipping dimensions are roughly 70″ X 70″ X 70″. Forklift is on-site and can load this onto a truck or trailer.

Machine Features

• Construction Design— heavily ribbed Meehanite cast construction provides superior rigidity for vivration damping and optimum grinding accuracy. Designed for long-term, trouble-free performance.

• Extra-large Handwheels— conveniently located to optimize operator control, convenience and comfort. Zero-setting slip rings for vertical and cross feed hand wheels.

• Smooth Table Movement— moves easily through reliable belt drive table and linear ball bearing system. Cushioned table stops absorb impact when work piece limits are established.

• Centralized Controls – — for ease of operation, convenience and safety.

• Double-Walled Column Construction… Precision guideways provide the strength

• Precision Grinding Spindle—no-maintenance “ lubed for life” cartridge type grinding wheel spindle standard. Directly coupled to dynamically balanced, fan cooled motor. Universal taper on spindle nose allows for interchange of wheel adapters with other tool room grinders.

• Automatic Lubrication — All Linear B Models utilize a proven Automatic Lubrication System. Lubrication oil is pumped to an oil reservoir located in the column and all guideway surfaces and positioning screws.

Machine Specifications :


Maximum Longitudinal Travel 20.87 inch

Maximum Cross Travel 8.27 inch

Maximum Distance under Wheel (8.0” to Table Surface) 14.27 inch

Magnetic Chuck Size (WxL) 6 x 18 inch


Surface (Width x Length) 6.2 x 18.9 inch.

Hand Feed per Revolution 5.12inch


Crossfeed Per Revolution 0.100 inch

Handfeed Dial Graduation 0.001 inch


Downfeed Per Revolution 0.050 inch

Handfeed Dial Graduation 0.0001 inch

Grinding Wheel Size (DxWxB) 8.0 x 1.0 x 1.25 inch


Grinding Wheel Spindle 2 hp

Power Supply: 230/460V, 3PH. 60HZ. 1.8 KVA

Desired Power Supply including

(Electro-Magnetic Chuck & Coolant System)

Floor Space ( L x W x H ) : 77 x 56 x 68 inch

Net Weight: 2,070 lbs.


Okamoto L818B

Up for sale is this very nice and highly optioned 2013 Okamoto Linear L818B 8″ X 18″ hand feed surface grinder. This size machine is no longer available from Okamoto and from what Okamoto says they did not sell many of them due to their high cost. Okamoto currently only sells a 6″ X 18″ version. This was purchased new by a biomedical company in California (Theranos) and has seen very little use over the course of its life. The paint is all original and in great shape. This really is a like new machine. These machines feature smooth table movement through a reliable belt drive, have a recirculating automatic lubrication system, heavy duty ribbed meehanite castings, no maintenance, lubed for life, cartridge type spindle, and are designed for long term trouble free performance.

This grinder is equipped with…

-Sony Magnescale DRO on both axis
-Okamoto coolant & dust suction unit
-Coolant system with splash guard
-Micro-feeder for cross movement
-Micro-feeder for vertical movement
-Work Light
-O.S. Walker LBP 8″X18″ electro magnetic chuck
-O.S. Walker variable chuck controller

A 6″X18″ machine equipped with these options is over $30,000 new from Okamoto and is one of the best surface grinders in the world. This one is in excellent condition and is at a fraction of the new price!

The machine can be wired for 230V or 460V 3 phase power.

All sales are “As-Is” FOB New Berlin, WI 53151 freight collect (buyer is responsible for all freight costs but we are happy to assist in making arrangements). Machine is available for inspection. Machine can be crated and shipped internationally. Payment to be made by cash, check or wire transfer