CNC Hydraulic Cylinder

1. Controlled stroke adjustment: Designed for press-brake applications requiring precise stroke control.

2. Electro-hydraulic servo control: A top-mounted servo valve regulates oil flow into the cylinder and adjusts its working stroke.

3. Flexible bending-angle capability: Stroke adjustment changes the closing height of the upper and lower dies, accommodating different sheet-metal bending angles.

4. Application-specific design: Tailored to CNC press-brake systems for accurate and reliable bending performance.

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Overview

The WST series CNC hydraulic cylinder is designed for CNC press-brake applications requiring precise stroke control. An electro-hydraulic servo valve mounted on top of the cylinder regulates oil flow into the cylinder and adjusts its working stroke, which changes the closing height between the upper and lower dies to accommodate different sheet-metal bending angles. It features controlled stroke adjustment, flexible bending-angle capability, and an application-specific design for accurate and reliable bending performance. For proper selection, the insert-valve connection, filling-port connection, working stroke, system pressure, operating speed, and external connection dimensions must be verified against the press-brake configuration. The cylinder must not be operated beyond its working stroke, and system pressure must not exceed its permitted rated pressure. External connection dimensions can also be modified to meet customer requirements.

Cylinders’ Selection

To ensure compatibility, compare the cylinder interface dimensions with the components on the press brake before ordering:

Insert-valve connection: Verify the insert-valve hole positions and dimensions against the valve-block connection dimensions.

Filling-port connection: Verify the filling-port position and dimensions on the cylinder mounting surface against the oil passages in the press-brake body. The sealing interfaces must be properly matched and seated.

Stroke: Select a working stroke greater than the maximum working stroke of the press-brake slide. Over-stroke operation is not permitted.

System pressure: The hydraulic-system setting must not exceed the cylinder's permitted rated pressure. Contact our technical department if special pressure requirements apply.

Operating speed: The recommended normal operating speed is below 120 mm/s. State any specific speed requirement in the technical order conditions.

External connections: External connection dimensions can be modified to meet customer requirements.

Customization and Alternative Series

The WST series can be custom-designed and manufactured to meet individual customer requirements. If the press brake’s filling insert-valve structure differs from the standard configuration, alternative hydraulic-cylinder series may be available. Please contact our technical department for selection support.

Parameter	40	63	80	100	125	160	200	250	320	400	500	600	800	1000	1500
Force (T)	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27
Pressure (MPa)	100	120	135	150	170	190	220	240	275	300	360	380	440	480	630
Bore D1	100	112	125	140	160	180	210	230	260	288	340	360	420	460	570
Rod Dia d	50	65	80	100	120	140	160	180	200	220	320	320	500	400	600
Stroke H	395	485	485	480	485	485	500	485	505	706	730	735	915	875	1990
A	170	190	195	210	265	295	320	385	370	420	495	500	580	650	960
B5	170	190	195	210	265	285	320	335	370	420	496	530	580	650	960
L1	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10
L2	20	20	20	20	15	10	15	15	20	15	15	20	25	25	25
L3	120	160	165	220	250	260	260	260	250	235	245	285	300	425	430
L4	48	48	48	48	48	48	48	48	48	58	58	58	290	325
L5	85	90	97.5	105	132.5	142.5	100	118	120	160	247.5	265			520
L6	85	110	105	105	70	62	60	62	60	80	80	80	65	80	80
L7	95	90	95	100	110	118	120	118	120	160	170	210	195	235	230
L8	135	160	155	150	160	152	150	152	150	200	205	195	190	190	210
L9	110	\	\	150	200	208	210	208	210	\	\	\	\	345	360
L10	85	150	150	150	180	200	220	200	240	280	340	350	440	410	740
L11	85	95	97.5	105	132.5	142.5	160	167.5	185	210	247.5	265	290	325	450
L12	15	15	15	15	20	15	40	15	15	40	80	80	150	180
L13	15	15	15	105	105	142.5	10	167.5	185	170	270	265	290	50	150
L14	85	85	97.5	105	132.5	142.5	100	167.5	185	210	247.5	265	290	325	500
L15	21	21	21	21	21	21	21	21	21	145	70	70	190	143	143
L16	43	43	43	43	43	43	43	43	43	70	44	44	150	143	143
L17	20	20	20	20	20	20	20	20	20	70	44	44	50	50	50
L18	43	43	43	43	43	43	43	43	43	70	44	44	145	145	145
L19	91	91	91	91	91	91	91	91	91	120	91	91	141	141	141
L20	45.5	45.5	45.5	45.5	45.5	45.5	45.5	45.5	45.5	120	91	91	31	31
L21	46.5	46.5	46.5	46.5	46.5	46.5	46.5	46.5	46.5	60	60	4	4	4	4
L22	51.5	51.5	51.5	51.5	51.5	51.5	51.5	51.5	51.5	21	21	70	70	70	70
L23	102	102	102	102	102	102	102	102	102	13	13	13	109	109	109
L24	\	\	\	\	\	\	\	\	\	60	60	60	339	450	450
L25	\	\	\	\	\	\	\	\	\	66	66	66	170	230	230
L26	\	\	\	\	\	\	\	\	\	67	67	67	185	275	275
b(H7)	30	30	35	40	40	60	60	60	60	80	100	120	150	175	160
t(G12)	10	10	10	10	10	20	20	20	20	25	30	30	30	40	45
ll	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	4.6	4.65	4.65
M1	\	\	\	\	\	\	\	\	\	320	330	310	325	300	340
M2	\	\	\	\	\	\	\	\	\	\	\	\	455	\	470
M3	\	\	\	\	\	\	\	\	\	\	\	\	\	\	600
M4	\	\	\	\	\	\	\	\	\	\	\	\	\	\	460
M5	\	\	\	\	\	\	\	\	\	\	\	\	\	\	600
n1	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
n2	6	6	6	8	8	8	8	8	8	8	8	8	10	10	20
n3	2	2	2	2	2	2	2	2	2	2	2	2	2	2	4
n4	4	4	4	4	4	4	4	4	4	4	4	4	6	6	6
n5	\	\	\	\	\	\	\	\	\	\	\	\	16	16	\
D1 用 O 型圈	37.7*3.5	37.7*3.5	37.7*3.5	37.7*3.5	41.7*3.5	43.7*3.5	41.7*3.5	43.7*3.5	54.6*5.7	69.6*5.7	69.6*5.7	69.6*5.7	\	\	\
D2	M12	M12	M12	M12	M16	M16	M16	M20	M24	M30	M36	M42	M48	M56	M52
D3	M12	M70	M70	M70	M70	M95	M132	M110	M140	M170	M275	M275	M285	M324	\
D4	45	90	103	90	120	130	160	160	200	220	120	140	170	150	\
D5	M12	M20	M20	M20	M20	M20	M24	M24	M24	M30	M36	M42	M320	M448	M48
D6	M12	M12	M12	M12	M12	M12	M12	M12	M12	M16	M36	M24	M216	M20	M48
D7	M12	M12	M12	M12	M12	M12	M12	M12	M12	M16	M16	M16	M16	M16	M16
D8	15	15	15	15	15	15	15	15	15	16	16	16	20	20	20
D9	62	62	62	62	62	62	62	62	62	106	105	105	116	116	16
D10	10	10	10	10	10	10	10	10	10	20	20	20	16	16	16
D11	10	10	10	10	10	10	10	10	10	16	16	16	140	140	168
D12	\	\	\	\	\	\	\	\	\	\	\	\	165	165	290
D13	\	\	\	\	\	\	\	\	\	\	\	\	M12	M12	M24

Exhibition Participation

Taking part in trade shows allows us to broaden our market reach while keeping us informed of the latest industry developments at home and abroad. By showcasing our products and technologies at major exhibitions, we can connect directly with customers, partners, and industry peers, gaining valuable insights into emerging market trends and evolving customer needs. These events also provide an important platform for strengthening brand visibility, exploring new business opportunities, and exchanging technical knowledge with professionals across the hydraulic industry. In addition, attending trade shows helps us benchmark our products against competitors, identify areas for improvement, and stay aligned with the latest innovations and standards in both domestic and international markets.

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CNC Hydraulic Cylinder

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