Model	Oper. Wt. (lbs)	Cent. Force LB/Blow
MVC-62	135	2271
MVC-77	165	3350
MVC-90	194	3350
MVC-110	278	5600

---

Model	Oper. Wt. (lbs)	Cent. Force LB/Blow
VPG 165A	160	3375
WP 1550AW	190	3375
VPY 1750	208	3900
BPS 2550A	274	5650

---