Catalogues - setco-hs-series-precision-hardened-way-slides

Catalogue Setco - HS Series Precision Hardened Way Slides

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Design Data

PULL FORCE-

PUSH FORCE

The theoretical push and pull forces for hydraulic and air cylinders are derived from the following formula:

F = P x A F = Force (lbs.)

P = Pressure at the cylinder in psi, gauge A = Effective area of cylinder piston (Sq. In.)

E»h-

• • • •


Model	Cylinder Bore (In.)	Piston Area (Sq. In.)	Piston Rod Area (In.)	Piston Rod Dia. (In.)	PUSH FORCE (lbs) at Various Pressure (psi)							PULL FORCE (lbs) at Various Pressure (psi)
Model	Cylinder Bore (In.)	Piston Area (Sq. In.)	Piston Rod Area (In.)	Piston Rod Dia. (In.)	80	100	250	500	1000	2000	3000	80	100	250	500	1000	2000	3000
HS7	2	3.14	0.31	0.63	251	314	785	1570	3140	6280	9420	227	283	709	1417	2835	5670	8504
HS9	2.5	4.91	0.79	1.00	393	491	1228	2455	4910	9820	14730	330	412	1031	2062	4123	8247	12370
HS12	3.25	8.30	0.79	1.00	664	830	2075	4150	8300	16600	24900	601	751	1878	3755	7510	15021	22531
HS15-18	4	12.57	2.41	1.75	1006	1257	3143	6285	12570	25140	37710	813	1016	2540	5080	10160	20320	30180
HS24-32	5	19.64	3.14	2.00	1571	1964	4910	9820	19640	39280	58920	1320	1650	4125	8250	16500	33000	49500

Example of Combined Load Case

A horizontal mounted HS industrial slide is required to feed a boring spindle. The boring spindle weighs 600 lbs. and subjects the slide to a 750 lb. feed thrust as shown below.


60C	lbs.		—	750 lbs.
	I^-1		—	" } to
1—1		I
1—1
		l

Dynamic Loading - moving weight of spindle

Load Case = I (see page 28) Loading (F) = 600 lbs. (see page 28) Equation: = Fh > F (see page 28)

Knowing that Fh must be at least 600 lbs (F), Fh can be assumed to be 600 lbs, and considering a HS 12, the minimum saddle length can be calculated from the following slide load formula:

Fh = 238 x S (see page 28)

600 = 238 x S

S = 2.52 saddle length

Rounding up to the nearest whole number:

S = 3 inches (Note: A slide's length should never

be less than its width). S = 12 inches

Dynamic Loading - feeding boring spindle

Load Case = V (see page 28)

Slide moment Loading (M) = F x d (see page 28) M = F x d = 6 x 750 = 4500 (inch-lbs.)

Equation: = Mz > F x d (see page 28)

Knowing that Mz must be at least 4500 inch-lbs (M=F x d), Mz can be assumed to be 4500 inch-lbs, and considering a HS12, the minimum saddle length can be calculated from the following slide load formula:

Mz = 30 x S²4500 = 30 x S²S = 12.25

Rounding up to the nearest whole number: S = 13 inches Use a HS12 slide with 13 inch long saddle.

Note: For applications where load is applied in the direction of slide travel, the slide load capacity may be limited to the capacity of the slide feed mechanism. Check the load values with the maximum thrust capacities for the feed mechanism being used. For static applications the saddle-locking device may limit the slide load capacity.

Slide load capacity is based on uniformly applied loads and moments. Consult the SETCO proposal-engineering department on all applications where shock loading is present.