NEW! Double Acting Part Crowder Block Cylinders

Part Crowders

Full Retraction for Clear Robot Access. Double-acting design retracts completely for unobstructed loading
and unloading.
Spring Contact, Hydraulic Hold. Applies low spring force for initial part control, then transitions to high-force hydraulic when pressure is applied.
Crowds and Clamps in One Device. Eliminates separate crowding and clamping components by performing both functions with a single device.
Model Range Matches Part Size. Low spring force in compact models and higher spring force in larger units, allows selection based on part mass and rigidity.

Double-Acting-Part-Crowder-Block-Cylinders

*Spring Force = Full Stroke Force + (Spring Rate × Compression)
Where:
Full Stroke Force (lbs): The spring force when the cylinder is at its full-stroke (fully extended) reference position.
Spring Rate (lbs/in): The increase in force per inch of additional compression.
Compression (in): The distance the cylinder is compressed from the full-stroke position.
**Cylinder capacities are at 5,000 psi maximum operating pressure. The output force is adjustable by varying hydraulic system pressure. To determine the approximate output force for your application, multiply the piston area by your system operating pressure. (Actual force may vary slightly due to friction loss, seal and wiper drag and/or return springs.)

Table Data Coming Soon!

Model No.	Clamp Capacity (lb.) Extend	Clamp Capacity (lb.) Retract	Stroke	Spring Force (lb.)	Std Spring Rate (lb./in.)	Body Size	Minimum Length (in)	Piston Area (sq. in.) Extend	Piston Area (sq. in.) Retract	Oil Capacity Extend (cu. in.)	Oil Capacity Retract (cu. in.)
25-1208-10	2,200	1,200	0.25	5.0	50	1.13 x 2.00	2.37	0.442	0.246	0.110	0.061
25-1208-11	2,200	1,200	0.75	5.0	26	1.13 x 2.00	3.12	0.442	0.246	0.330	0.183
25-1210-10	3,900	1,300	0.50	5.0	45	1.75 x 2.00	2.80	0.785	0.267	0.393	0.134
25-1210-11	3,900	1,300	1.00	5.0	43	1.75 x 2.00	3.30	0.785	0.267	0.785	0.268
25-1210-12	3,900	1,300	2.00	5.0	23	1.75 x 2.00	4.43	0.785	0.267	1.570	0.536
25-1215-11	8,800	3,800	1.00	5.0	42	2.00 x 2.50	3.38	1.767	0.773	1.767	0.774
25-1215-12	8,800	3,800	2.00	10.0	30	2.00 x 2.50	4.38	1.767	0.773	3.534	1.548

Model No.	A	B	C	D	E	F	G	H	J	K	L	M	N	P	Q	R	S	T	V	W	X	Y	Z	AA	AB	AC
25-1208-10	2.37	0.25	1.84	0.29	0.28	0.92	N/A	0.50	1.31	0.22	2.00	1.31	0.66	0.91	0.28	0.43	0.31	0.56	0.62	1.13	1/4-20 ↧ 0.44	1.06	0.38	1.10	0.38	0.38
25-1208-11	3.12	0.75	2.59	0.29	0.28	0.92	N/A	0.50	1.31	0.22	2.00	1.31	0.66	0.91	0.28	0.43	0.31	0.56	0.62	1.13	1/4-20 ↧ 0.44	1.06	0.38	1.85	0.38	0.38
25-1210-10	2.80	0.50	2.25	0.32	0.34	1.06	N/A	0.81	1.50	0.26	2.00	1.50	0.75	1.00	0.28	0.68	0.62	0.87	1.25	1.75	5/16-18 ↧ 0.44	1.38	0.50	1.12	0.31	0.88
25-1210-11	3.30	1.00	2.75	0.32	0.34	1.06	N/A	0.81	1.50	0.26	2.00	1.50	0.75	1.00	0.28	0.68	0.62	0.87	1.25	1.75	5/16-18 ↧ 0.44	1.38	0.50	1.62	0.31	0.88
25-1210-12	4.43	2.00	3.87	0.32	0.34	1.06	1.62	0.81	1.50	0.26	2.00	1.50	0.75	1.00	0.28	0.68	0.62	0.87	1.25	1.75	5/16-18 ↧ 0.44	1.38	0.50	2.75	0.31	0.88
25-1215-11	3.38	1.00	2.75	0.40	0.34	1.06	N/A	1.13	2.00	0.36	2.50	1.90	0.95	1.25	0.34	1.00	0.70	1.00	1.40	2.00	1/2-13 ↧ 0.51	1.75	0.50	1.62	0.31	1.00
25-1215-12	4.38	2.00	3.75	0.40	0.34	1.06	1.63	1.13	2.00	0.36	2.50	1.90	0.95	1.25	0.34	1.00	0.70	1.00	1.40	2.00	1/2-13 ↧ 0.51	1.75	0.50	2.66	0.31	1.00

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