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 • Spin Balance Machine
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 • Center of Gravity
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REFURBISHED INSTRUMENTS

We have refurbished units in stock that we offer at substantial savings. These units carry our standard one-year warranty. Note that these refurbished units reflect our current stock and are subject to availability at time of order.

Refurbished Spin Balance Machines

POI1000

Our POI1000 is a two plane spin balance machine. It measures two coordinates of the center of gravity and the dynamic unbalance in one measurement at one rotational speed. It also measures the moment of inertia of your payload.

Key specifications:

 

Imperial Units

Metric Units

Maximum Payload Weight

1,000 lb

450 kg

Range of Spin Speeds

30 – 300 rpm

30 – 300 rpm

Unbalance Reduction Ratio

90%

90%

Minimum Achievable Readout

1.5 lb-in2 @ 50 rpm
0.3 lb-in2 @ 100 rpm
0.075 lb-in2 @ 200 rpm
0.045 lb-in2 @ 300 rpm

441 kg-mm2 @ 50 rpm
88 kg-mm2 @ 100 rpm
22 kg-mm2 @ 200 rpm
15 kg-mm2 @ 300 rpm

Full Scale Dynamic Unbalance

19,200 lb-in2 @ 50 rpm
4,800 lb-in2 @ 100 rpm
1,200 lb-in2 @ 200 rpm
533 lb-in2 @ 300 rpm

5.6 kg-m2 @ 50 rpm
1.4 kg-m2 @ 100 rpm
0.35 kg-m2 @ 200 rpm
0.155 kg-m2 @ 300 rpm

MOI accuracy

0.25% of reading + 2 lb-in2

0.25% of reading + 585 kg-mm2

If you are interested in this instrument please fill in our "request for quote" form (using the link on the top right corner of the web page) and indicate your interest in our "refurbished POI1000".

POI300

Our POI300 is a two plane spin balance machine. It measures two coordinates of the center of gravity and the dynamic unbalance in one measurement at one rotational speed. It also measures the moment of inertia of your payload, and it measures center of gravity statically.

Key specifications:

 

Imperial Units

Metric Units

Maximum Payload Weight

300 lb

136 kg

Maximum Loading Moment

1,000 lb-in

11.5 kg-m

Range of Spin Speeds

50 - 400 rpm

50 - 400 rpm

Unbalance Reduction Ratio

90%

90%

Minimum Achievable Readout

2 lb-in2 @ 100 rpm
0.5 lb-in2 @ 200 rpm
0.12 lb-in2 @ 400 rpm

585 kg-mm2 @ 100 rpm
146 kg-mm2 @ 200 rpm
35 kg-mm2 @ 400 rpm

Full Scale Dynamic Unbalance

3,521 lb-in2 @ 100 rpm
880 lb-in2 @ 200 rpm
220 lb-in2 @ 400 rpm

1.03 kg-m2 @ 100 rpm
0.25 kg-m2 @ 200 rpm
0.064 kg-m2 @ 400 rpm

Static CG Error

1% of reading + (0.05 lb-in / part weight in lb)

1% of reading + (0.058 kg-cm / part weight in kg)

MOI accuracy

0.25% of reading + 5 lb-in2

0.25% of reading + 14.6 kg-cm2

If you are interested in this instrument please fill in our "request for quote" form (using the link on the top right corner of the web page) and indicate your interest in our "refurbished POI300".


Refurbished Center of Gravity and Moment of Inertia Measurement Instruments

KGR300

We have one KGR300 mass properties measurement instrument available. This instrument measures center of gravity and moment of inertia of payloads up to 300 lb.

Key specifications:

 

Imperial Units

Metric Units

Maximum Payload Weight

300 lb

136 kg

Full Scale Moment

150 lb-in

1.7 kg-m

Moment of Inertia Accuracy

0.25% of reading + 0.2 lb-in2

0.25% of reading + 0.58 kg-cm2

Center of Gravity Maximum Error

0.001 in + (0.1 lb-in + 1% of measured moment in lb-in) / part weight in lbs

0.025 mm + (1.15 kg-mm + 1% of measured moment in kg-mm) / part weight in kg

Table Diameter

10 inches

25.4 cm

If you are interested in this instrument please fill in our "request for quote" form (using the link on the top right corner of the web page) and indicate your interest in our "refurbished KGR300".


Refurbished Moment of Inertia Measurement Instruments

XR10

The XR10 is a small moment of inertia measurement instrument for payloads weighing up to 10 lb (including fixture).

Key specifications:

 

Imperial Units

Metric Units

Maximum Payload Weight

10 lb

4.5 kg

Overturning moment

15 lb-in

17.3 kg-cm

Maximum CG Height of Payload

10 lb at 10 inches

4.5 kg at 25 cm

Tare Moment of Inertia

0.014 lb-in2

0.041 kg-cm2

MOI Accuracy

0.25% + 1 x 10-5 lb-in2

0.25% + 2.9 x 10-5 kg-cm2

If you are interested in this instrument please fill in our "request for quote" form (using the link on the top right corner of the web page) and indicate your interest in our "refurbished XR10".

 

Refurbished Center of Gravity Measurement Instruments

CG601B2

The CG601B2 is a dual axis Center of Gravity instrument with a rotary table. This instrument measures the center of gravity location of payloads up to 300 lbs.

Key specifications:

 

Imperial Units

Metric Units

Maximum Payload Weight

300 lb

136 kg

Maximum overturning moment

150 lb-in

1.7 kg-m

Center of Gravity maximum error

0.001 in + (0.1 lb-in + 2% of measured moment in lb-in) / part weight in lbs

0.025 mm + (1.15 kg-mm + 2% of measured moment in kg-mm) / part weight in kg

Table diameter

10 inches

25.4 cm

If you are interested in this instrument please fill in our "request for quote" form (using the link on the top right corner of the web page) and indicate your interest in our "refurbished CG601B2".


SE8913C

The SE8913C is a manual, dual axis Center of Gravity instrument with a rotary table. This instrument measures the center of gravity location of payloads up to 33 lbs.

Key specifications:

 

Imperial Units

Metric Units

Maximum Payload Weight

33 lb

15 kg

Full Scale Moment

10 lb-in

11.5 kg-cm

Moment Sensitivity

0.02 lb-in

0.23 kg-mm

Instrument Dimensions

15.3 in x 14 in x 10 in

25.4 cm

Instrument Weight

34 lb

15.4 kg

If you are interested in this instrument please fill in our "request for quote" form (using the link on the top right corner of the web page) and indicate your interest in our "refurbished SE8913C".




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Space Electronics LLC - 81 Fuller Way - Berlin, CT 06037 (USA) - Phone: +1 860 829 0001 - Fax: +1 860 829 0005 - Email: sales@space-electronics.com
Our Mass Properties Measurement Products: 
Center of Gravity Measurement Instruments  
Moment of Inertia Measurement Instruments  
Product of Inertia Measurement Instruments  
Combined Mass Properties Measurement Instruments