JH21 Pneumatic Punching Press

A rigid-frame pneumatic press platform for repeat punching, blanking, forming, and compatible progressive-die production.

JH21 Series25–400 T

PRODUCT OVERVIEW

Build the press around the die and production sequence

JH21 selection begins with the die, force curve, stroke, shut height, feeding method, guarding, and intended production duty. The whole press scope must be reviewed with the real tool and part.

Rigid-frame route for repeat punching, blanking, and forming work
Stroke, shut height, die adjustment, and work area reviewed with the tool
Feeding, discharge, guarding, and production rhythm planned together

REFERENCE SERIESJH21

MODEL RANGE25–400 T

NOMINAL FORCE250–4,000 kN

PROCESSPunch / blank / form

MACHINE STRUCTURE

Coordinate the press, die, material, and safety system

Frame and bed

Frame rigidity, bed envelope, access, and foundation planning are reviewed with the die and production duty.

Slide and guidance

Slide travel, guide condition, and adjustment range are matched to the shut height, die envelope, and work sequence.

Drive and pneumatic control

The drive, clutch/brake scope, and control method are selected with stroke pattern, cycle demand, and site operating procedure.

Die and work area

Die dimensions, fastening, material direction, worktable access, and repeat stops determine the useful press configuration.

Material feed and discharge

Manual or matched feeding, discharge, part handling, and inspection flow should be reviewed with the output target.

Guarding and operator access

Guarding, control mode, access, service space, and safety procedure are confirmed before operation.

CONFIGURATION POINTS

Start with the real stamping process

Die process

Provide die drawing, blank or strip direction, stages, shut height, required force calculation, and expected work position.

Part and material

Confirm material grade, thickness, coil or blank format, finished geometry, edge condition, and tolerances.

Production flow

Define feed method, target output, loading, discharge, inspection, guarding, and operator method.

Technical parameters

The product image is a JH21-160B reference only and does not establish equivalence with JH21-160. Fixed and variable stroke rates are separate values; final tooling and configuration are confirmed in the technical agreement.

Technical parameter	Code	Unit	JH21-25	JH21-45	JH21-60	JH21-80	JH21-125	JH21-160	JH21-200	JH21-250	JH21-315	JH21-400
Nominal capacity	Pe	kN	250	450	600	800	1250	1600	2000	2500	3150	4000
Nominal force travel	Sp	mm	3	4	4	5	6	6	6	6	7	8
Slide stroke	S	mm	80	120	140	160	180	200	250	250	250	270
Fixed slide strokes per minute	n	times/min	100	80	70	60	50	45	45	30	30	30
Variable slide strokes per minute	n	times/min	60–100	50–80	45–70	40–60	35–50	30–45	25–45	20–30	20–30	20–30
Maximum die set height	H2	mm	250	270	300	320	350	400	450	500	500	550
Die height adjustment	t	mm	50	60	70	80	90	100	110	120	120	120
Throat depth	C1	mm	210	225	270	310	350	400	430	450	450	490
Distance between uprights	d1	mm	450	515	560	610	670	736	910	980	980	1050
Slide bottom size L–R	a	mm	360	410	480	540	620	700	880	950	950	1020
Slide bottom size F–B	b	mm	250	340	400	460	520	580	650	700	700	750
Die shank diameter	d	mm	40	50	50	50	70	70	70	70	70	70
Die shank depth	l	mm	65	60	70	65	90	100	100	130	130	130
Bolster size L–R	C	mm	720	825	930	950	1100	1170	1390	1500	1540	1700
Bolster size F–B	D	mm	400	440	520	600	680	760	840	880	880	950
Falling-hole diameter	φ	mm	150	150	150	150	160	180	200	200	200	200
Bolster thickness	H3	mm	80	110	130	140	155	165	180	190	190	210
Bolster surface height	H1	mm	780	800	900	900	900	900	1000	1000	1000	1100
Overall dimensions L–R	A	mm	1496	1585	1540	1765	2040	2305	2600	2660	2720	2850
Overall dimensions F–B	B	mm	945	1075	1200	1200	1320	1420	1540	1640	1680	1750
Overall dimensions H	H	mm	2120	2391	2570	2725	3035	3215	3800	3865	3865	4150
Foundation distance F–B	a	mm	980	1075	1100	1210	1430	1665	2020	2100	2140	2260
Foundation distance L–R	b	mm	660	760	840	920	1040	1140	1840	1740	1810	1750
Motor model	—	—	Y100L–4	Y132S–4	Y132S–4	Y132M–4	Y160M–4	Y160L–4	Y180M–4	Y200L–6	Y225M–6	Y250M–6
Motor power	—	kW	3	5.5	5.5	7.5	11	15	18.5	22	30	37
Approximate weight	—	kg	2450	3550	5150	6450	9550	13600	19200	23200	26600	31600

TAILORED TECHNICAL PROPOSAL

Configure your Pneumatic Punching Press

Share drawings, materials, target output, and current process constraints. An engineer can use them to prepare the next conversation.

SELECTED FAMILY07 · Pneumatic Punching Press

Your Name *Company *Contact Details *EmailProduct Family *Inquiry goal (optional)Project stage (optional)Desired timeline (optional)

Requested configurationPneumatic Punching PressJH21 Series

Material / GradeThickness RangeMax Part / Sheet SizeTarget OutputDrawings / Technical FilesChoose filesUp to 5 files; 8 MB per file and 20 MB total. Attachments are sent with your inquiry.Application Requirements

By submitting, you agree that GWMT may use these contact details and files to respond to your inquiry.