MTS 318 Load Unit - Manual (Page 21)

318 Load Unit Introduction 21
Force Ratings
The Series 318 Load Units include other products. The following table lists
specifications from several product information manuals. Specifications listed in
the respective product information manual supersede the following
specifications.
Stiffness Data Stiffness is a way to measure the deflection of the force train. Deflection rates can
vary 20%, depending on the actuator and force transducer you use.
Weight *
Base mount
318.10
318.25
318.50
Crosshead mount
318.10
318.25
318.50
approximate minimum weight
500 kg (1100 lb)
960 kg (2120 lb)
1900 kg (4200 lb)
555 kg (1225 lb)
1065 kg (2345 lb)
2100 kg (4625 lb)
* The weight specification is for lifting and moving purposes. The weight of
accessories and special fixtures must be added. The actual shipping
weight must be determined by a scale.
P ARAMETER S PECIFICATION
M ODEL F RAME
F ATIGUE R ATING
A CTUATOR
R ATING*
* At 21 MPa (3000 psi)
T RANSDUCER
R ATING
M OUNTING
T HREADS
318.10 100 kN
(22 kip) 25 kN
(5.5 kip) 25 kN
(5.5 kip) M27 x 2
(1 - 14 UNS)
50 kN
(11 kip) 50 kN
(11 kip) M27 x 2
(1 - 14 UNS)
100 kN
(22 kip) 100 kN
(22 kip) M27 x 2
(1 - 14 UNS)
318.25 250 kN
(55 kip) 100 kN
(22 kip) 100 kN
(22 kip) M27 x 2
(1 - 14 UNS)
250 kN
(55 kip) 250 kN
(55 kip) M36 x 2
(1 1/2 - 12 UNF)
318.50 500 kN
(110 kip) 250 kN
(55 kip) 250 kN
(55 kip) M36 x 2
(1 1/2 - 12 UNF)
500 kN
(110 kip) 500 kN
(110 kip) M52 x 2
(2 -12 UNF)