This is an extended linear motion air bearing stage manufactured by Dover Instrument Corporation of Westboro, MA. It does have a motor installed along with a motor connection cable. There is also an external proximity sensor for one end of excursion.

Stage travel � 6 inches
Stage table dimensions � 4.375 by 6 inches
Table height � 2.625 inches above feet
Stage base dimensions � 7 by 14 inches (plus 1.25 inches for motor-side foot)
Granite bearing � 2.484 x 1.238 inches in cross-section, 13.75 inches long
Compumotor A/AX57-51 with extended shaft for manual operation
Leadscrew diameter and pitch � 0.500 x 0.100 inches
Adjustable limit switches, but no connections presently

The stage is in superb cosmetic condition but we have no way to test. Stage should have air supply before leadscrew is rotated to prevent possible damage to bearing surfaces

***MPN
***OEM Dover Instrument
***SKU*** DP589

This is an extended linear motion air bearing stage manufactured by Dover Instrument Corporation of Westboro, MA. It is complete with limit switch cable but does not have a motor installed. Will accept standard NEMA 23 mount motors.

Stage travel � 6 inches
Stage table dimensions � 4.375 by 6 inches
Table height � 2.625 inches above feet
Stage base dimensions � 7 by 14 inches (plus 1.25 inches for motor-side foot)
Granite bearing � 2.484 x 1.238 inches in cross-section, 13.75 inches long
Leadscrew diameter and pitch � 0.500 x 0.100 inches
Adjustable Limit optos, but no connections presently

The stage is in excellent cosmetic condition but we have no way to test. Leadscrew is missing the bearing on the distal end. Stage should have air supply before leadscrew is rotated to prevent possible damage to bearing surfaces

Location H3 R3

Photo set 1036
***MPN
***OEM Dover Instrument
***SKU*** DP588

This Design Components Inc. rotary stage is worm driven. The bearings appear to be either Teflon or Delren sleeve bearings. The motor is a DCI 1024402m. There does not appear to be any other information on the table. The table must be used horizontally since it runs in an oil bath (level monitor window is recessed on the side of the housing).

Base for the table is 6 inches by 5 inches
Adapter plate affixed to the base 6 by 7.25 by 0.375 inches
Overall height including the adapter plate is 2.625 inches
Rotary hub is 1/8 inch proud of the housing and 2.250 inches in diameter
NOTE � Cap screws protrude even when adapter plate is installed

The motor adds approximately five inches to the width of the narrow side of the housing. There is no means of manual positioning. Condition is excellent.

Location H3 R2

Photo set 1035
***MPN
***OEM Design Components
***SKU*** DP587

This is a Pacific Precision Laboratories �Cobra� series motorized stage. Both axes have Compumotor steppers installed.

Stage base dimensions � 12 by 14 inches
Stage platen dimensions � 12 by 12 inches
Overall height � 4 inches
Stage travel � 6 inches in both X and Y
Limit OPTOS on both axes
Motor type � Compumotor LE57-51 both axes
Leadscrews � 0.100 TPI, 0.50 inches diameter
Weight � 46 pounds

The stage utilizes crossed-roller bearings. Both motors have extended shafts with knobs installed for manual operation. Condition of the stage is superb.

Location H3 R3

Photo set 1032
***MPN Cobra
***OEM Pacific Precision Labs
***SKU*** DP584

Design Components XY stage with ball-bearing races. Stage has NEMA 23 motor mounting plate installed on one axis, the other axis has a Compumotor Type DH 57-88 with manual actuator knob.

Stage base dimensions � 10 x 10 inches
Stage table dimensions � 10 x 10 inches
Stage travel � 6 inches X and Y
Stage height � 5 inches (X and Y together)
Leadscrew � 0.20 inch pitch, 0.500 inches diameter
Bolt hole pattern � �-20 steel inserts on 8.5 inch square
Model number / Serial number � DC66 / GG-12
Weight – 46 pounds

Stage is in very good condition � the leadscrews work very smoothly. The top surface of the table has some minor scuff marks.

Location H3 R1

Photo set 1075
***MPN DC66
***OEM Design Components
***SKU*** 16021

This is a Motorized Cradle Goniometer Stepping Motor. The Klinger BM120PP Goniometer features a worm mounted rotary encoder for improved accuracy and repeatability.
The encoder also provides a method for detecting motor stalling, an important feature for applications with high loads or torques.
This PP mini-step drive version enables high angular speeds up to 20 degrees/sec. Up to 20 kilogram load.
Features +/-45 degree travel at 0.001 resolution. *This item came from a working environment but has not been tested. Offered “as is, final sale”. Available for inspection at our location by appointment.

***MPN BG120PP
***OEM Klinger Scientific
***SKU*** 14217

This is a Daedal 110000 series linear table with 8 inches travel. It uses non-recirculating ball-bearing races and motion is imparted by a 0.20 inch pitch leadscrew. Model number is 110081S20E.

Stage base dimensions � 10 by 12 inches
Travel � 8 inches
Table dimensions � 10 by 12 inches
Stage height � 3 inches
NEMA 23 Slo-Syn Motor, Type M063-FD09
Load bearing � 140 pounds (horizontal); 40 pounds vertical
10 stainless steel �-20 thread inserts in table top

Table is in excellent condition. No manual control of leadscrew, but by turning the motor coupling we confirmed that stage motion was smooth throughout range. Motor has 6-pole Jones plug attached. We have no means of determining if this is the �standard� or �precision� accuracy version of the stage, so the model number reflects the former.

***MPN
***OEM Daedal
***SKU*** DP546

This is a Kensington linear motorized stage with 12 inches of motion. It uses cross-roller bearings for very large load bearing (multiple stages are easily stacked).

Stage base dimensions � 8.625 inches wide and 16.75 inches long.
Platform height (above base) � 2.845 inches
Platform dimensions � 5.70 inches wide and 16.75 inches long
Serial number � 89-295-20
Has externally user adjustable limit switch option
EG&G PM Field DC Servo Motor � MT2115-014DF

Stage is in near-flawless condition although it has not been tested with a driver. Manual control is possible using external control knob, and motion is very smooth throughout range.

Location H3 R2

Photo set 992
***MPN 8500-12
***OEM Kensington
***SKU*** DP545

This is an Aerotech XY translation stage consisting of two Model ATS 302MMW stages stacked one on the other. The motors are both missing (they would have had spur gears mounted on them to transmit motion to the leadscrews.

Stage base dimensions � 5 inches square
Overall stage height � 3.075 inches
Stage clear aperture � 2 by 3.5 inches (partly occluded by cross-mounting of stages)
Leadscrew pitch � 0.5mm
Range of motion � 2 inches in X and Y
Motor mount size � NEMA 23

Stage is in excellent condition although the cable leads to the limit switches have been severed.

Location MB 141

Photo set 989
***MPN ATS302
***OEM Aerotech
***SKU*** DP542

This is an unmarked motorized translation stage. The table surface is 4.5 inches square and has a range of motion 6 x 6 inches. The baseplate is 12 x 7 inches (with an additional 5 inches required by the motor and coupling housings. The motor housing drops approximately 0.625 inches beneath the level of the base, so a riser plate would be needed if this were to be mounted on a large flat surface. The cross-motion stage is somewhat smaller, at 12 by 4.5 inches (again, with an additional 5 inches required for the motor and coupling). Height of the table from the bottom plate (excluding motor housing) is 3.00 inches.

Both motions are imparted by precision ball-screws with a 4mm pitch. On either side of the ball screw nut are paired recirculating bearing cages to eliminate any ptich wobble.

The motors are Superior Electric Slo-Syn synchronous stepping type, with 200 steps per revolution (0.02mm/step). Motor type number is M062-FD09. There are no connectors on the motors � the leads on one motor are about 4 inches long, on the other motor closer to 10 inches. There are also limit switches for either end of the excursion for both X and Y axes, however, they are not connected to anything presently.

The stage is in excellent condition and very nicely made.

Location H2R5

Photo set 765
***MPN
***OEM Custom
***SKU*** DP333

This is a Design Components linear motorized stage consisting of two linears arranged in an XY configuration. Each linear motion slide is 15 x 10 inches (base and top plate same). There is a mounting plate for NEMA 23 motors that is proud of the base long dimension by 0.720�. The flex coupling is present on both stages, but both motors are absent. Each stage has a 6-inch range of motion and runs on cross-roller bearings.

Each linear has an end-stop detector system fixed to one side with adjustable limit plates. All four plates are present, and the cable for both axes terminates in a single connector (see third photo). Each linear stage is 3� tall, so the pair is 6 inches tall. The upper slide is pin-registered to the lower slide, and may be removed if desired. Model number of the stage is DC-1010R Serial number is M1-11. The complete stage weighs close to 77 pounds without motors.

The stage appears to be in excellent condition. Both linears were run to the limits of their excursions without any problems. The lead screws appears to be a ball-screw type and very little force was required to actuate the stage

I was unable to find out any of the specifications on this stage, but it certainly appears that it is meant to support hundreds of pounds.

Location H1R1

Photo set 672
***MPN DC-1010R
***OEM Design Components
***SKU*** DP239

This is a Teradyne compound XY linear translation stage with 4 inches of motion on each axis. The stage includes a pair of stepper motors, but there is no nomenclature on the motors, and the cables to the drive electronics have been severed. There are no knobs for manual operation. There are also two small oil reservoir covers, but I cannot see how the reservoir communicates with any of the moving elements, although there was definitely an oil residue on both the leadscrew and on the rod bearings, so it must function.

This stage probably dates from the late 1960�s but is in very fine condition and has some very interesting construction features that are quite unique. The fixed base of each axis consists of an aluminum extrusion the cross-section of which is shaped rather like a capital Omega. On the vertical section of both sides of the base a groove has been milled into which are set paired half-inch precision ground hardened bearing rods. The moving element (the table) wraps around the outside of the rods on each side. On the leading and trailing edges of each side of the table are half-cylindrical recirculating bearing cages. The table carriage is constructed in a manner that allows drawing the raceways against the rods using just two cap screws on the underside of the table. It is therefore very easy to preload the bearings and completely eliminate all play merely by setting two screws.

The leadscrew is supported on either end by very large ball-bearing races, and there is a flex coupling to the motor attached to the end of the stage. The motors on both axes are unmarked, and there is a terminal circuit board inside the enclosure next to the motors on both axes. Connections from the motor and also from a pair of limit switches are routed into the enclosure, as is the remnant of a truncated cable. My recommendation would be to replace the drive motors with new motors since none of the motor characteristics are known. It looks like an exchange could be very easily accomplished.

The two axes are easily separated after removing four mounting screws. I have done so for most of the photographs. Both axes are of similar construction, although the lower stage has three alignment pins set into the table platform (easily removed to produce a flat surface). Dimensions of the individual axis stages are as follows:.

Stage Base Length = 9.375 inches (not including end caps and motor housing)
Stage Base Width = 3.750 inches
Overall Length of Base = 14.25 inches (includes motor and bearing housing)
Overall Width of Table Carriage = 4.75 inches
Precision Ground Table Length = 5 inches
Table Width = 3.5 inches
Height of Stage = 2.375 inches (single axis only)
Overall Height of Compound Stage = 4.75 inches

The stage is in very fine condition � mechanically they look mint, but there is a bit of paint loss on the sides of the two carriages (very minor). I do not know the load-bearing capability of the stage, but it is certainly exceedingly robust.

Location H1R1

Photo set 652
***MPN
***OEM Teradyne
***SKU*** DP220