KP Series Knuckle-Joint 1-Point Cold Forging

Knuckle-Joint 1-Point Cold Forging Presses

Stamtec Cold Forge Technology

Stamtec cold forging press technology provides particular advantages for producing steel components, improving strength and consistency. Benefits include near net shape forming, improved mechanical characteristics, superior plasticity, higher surface quality, and increased productivity.

K Knuckle Joint Series

The KP Series cold-forging press is just one of a group of Stamtec knuckle-joint presses designed to improve and expand part production capabilities. Our knuckle-joint mechanism can alter the motion velocity of the press slide to a slow speed as it approaches the bottom dead-end center point, providing important benefits not only for cold forging but also for extrusion, coining, upsetting, sizing and heading.

TONNAGE RANGE: 250 - up to 4,000

Review the specs, advantages and features below and then contact us for more information on the cold forging press you need.  

• Specs
• Press Advantages
• Standard Features
• Optional Features

Specs

• KP-250
• KP-400
• KP-650
• KP-850
• KP-1000
• KP-1200
• KP-2000
• KP-Up to 4,000 Tons

KP-250

MODEL KP-250 SPECIFICATIONS
Type		S	V
Capacity	US Tons	275	275
		Metric Tons	250	250
Rated tonnage point	in.	0.16	0.16
		mm	4	4
Stroke Length	in.	4.72	4.72
		mm	120	120
Speed	SPM	30 ~ 50	30 ~ 50
Die height (S.D.A.U.)	in.	14.57	14.57
		mm	370	370
Maximum upper die weight	lbs.	19.69	19.69
		Kgs	500	500
Bolster area (L - R x F - B)	in.	19.69 x 23.62	19.69 x 23.62
		mm	500 x 600	500 x 600
Slide area (L - R x F - B)	in.	15.75 x 16.54	15.75 x 16.54
		mm	400 x 420	400 x 420
Slide adjustment	in.	0.59	0.59
		mm	15	15
Bolster thickness	in.	3.94	3.94
		mm	100	100
Air pressure required	PSI	71.12	71.12
		kg / cm2	5	5
Main motor	HP	20	25
Bed Knockout Device
Type		S	V
Capacity	US Tons	11	11
		Metric Tons	10	10
Stroke length	in.	1.97	1.97
		mm	50	50

KP-400

MODEL KP-400 SPECIFICATIONS
Type		S	V
Capacity	US Tons	440	440
		Metric Tons	400	400
Rated tonnage point	in.	0.24	0.24
		mm	6	6
Stroke Length	in.	6.3	6.3
		mm	160	160
Speed	SPM	25 ~ 40	25 ~ 40
Die height (S.D.A.U.)	in.	15.75	15.75
		mm	400	400
Maximum upper die weight	lbs.	31.5	31.5
		Kgs	800	800
Bolster area (L - R x F - B)	in.	21.65 x 25.98	21.65 x 25.98
		mm	550 x 660	550 x 660
Slide area (L - R x F - B)	in.	15.75 x 19.69	15.75 x 19.69
		mm	400 x 500	400 x 500
Slide adjustment	in.	0.59	0.59
		mm	15	15
Bolster thickness	in.	4.72	4.72
		mm	120	120
Air pressure required	PSI	71.12	71.12
		kg / cm2	5	5
Main motor	HP	40	50
Bed Knockout Device
A		S	V
Capacity	US Tons	16	16
		Metric Tons	15	15
Stroke length	in.	2.36	2.36
		mm	60	60

KP-650

MODEL KP-650 SPECIFICATIONS
Type		S	V
Capacity	US Tons	716	716
		Metric Tons	650	650
Rated tonnage point	in.	0.32	0.32
		mm	8	8
Stroke Length	in.	6.3	6.3
		mm	160	160
Speed	SPM	25 ~ 35	25 ~ 35
Die height (S.D.A.U.)	in.	15.75	15.75
		mm	400	400
Maximum upper die weight	lbs.	39.37	39.37
		Kgs	1000	1000
Bolster area (L - R x F - B)	in.	23.62 x 27.56	23.62 x 27.56
		mm	600 x 700	600 x 700
Slide area (L - R x F - B)	in.	17.72 x 21.65	17.72 x 21.65
		mm	450 x 550	450 x 550
Slide adjustment	in.	0.59	0.59
		mm	15	15
Bolster thickness	in.	5.91	5.91
		mm	150	150
Air pressure required	PSI	71.12	71.12
		kg / cm2	5	5
Main motor	HP	50	75
Bed Knockout Device
Type		S	V
Capacity	US Tons	33	33
		Metric Tons	30	30
Stroke length	in.	2.76	2.76
		mm	70	70

KP-850

MODEL KP-850 SPECIFICATIONS
Type		S	V
Capacity	US Tons	936	936
		Metric Tons	850	850
Rated tonnage point	in.	0.32	0.32
		mm	8	8
Stroke Length	in.	7.09	7.09
		mm	180	180
Speed	SPM	25 ~ 35	25 ~ 35
Die height (S.D.A.U.)	in.	15.75	15.75
		mm	400	400
Maximum upper die weight	lbs.	39.37	39.37
		Kgs	1000	1000
Bolster area (L - R x F - B)	in.	23.62 x 27.56	23.62 x 27.56
		mm	600 x 700	600 x 700
Slide area (L - R x F - B)	in.	17.72 x 21.65	17.72 x 21.65
		mm	450 x 550	450 x 550
Slide adjustment	in.	0.59	0.59
		mm	15	15
Bolster thickness	in.	7.09	7.09
		mm	180	180
Air pressure required	PSI	71.12	71.12
		kg / cm2	5	5
Main motor	HP	75	100
Bed Knockout Device
Type		S	V
Capacity	US Tons	33	33
		Metric Tons	30	30
Stroke length	in.	2.76	2.76
		mm	70	70

KP-1000

MODEL KP-1000 SPECIFICATIONS
Type		S	V
Capacity	US Tons	1102	1102
		Metric Tons	1000	1000
Rated tonnage point	in.	0.32	0.32
		mm	8	8
Stroke Length	in.	6.3	6.3
		mm	160	160
Speed	SPM	25 ~ 35	25 ~ 35
Die height (S.D.A.U.)	in.	19.69	19.69
		mm	500	500
Maximum upper die weight	lbs.	47.24	47.24
		Kgs	1200	1200
Bolster area (L - R x F - B)	in.	27.56 x 31.50	27.56 x 31.50
		mm	700 x 800	700 x 800
Slide area (L - R x F - B)	in.	18.90 x 25.59	18.90 x 25.59
		mm	480 x 650	480 x 650
Slide adjustment	in.	0.59	0.59
		mm	15	15
Bolster thickness	in.	7.09	7.09
		mm	180	180
Air pressure required	PSI	71.12	71.12
		kg / cm2	5	5
Main motor	HP	75	100
Bed Knockout Device
Type		S	V
Capacity	US Tons	55	55
		Metric Tons	50	50
Stroke length	in.	2.76	2.76
		mm	70	70

KP-1200

MODEL KP-1200 SPECIFICATIONS
Type		S	V
Capacity	US Tons	1322	1322
		Metric Tons	1200	1200
Rated tonnage point	in.	0.32	0.32
		mm	8	8
Stroke Length	in.	9.84	9.84
		mm	250	250
Speed	SPM	25 ~ 30	25 ~ 30
Die height (S.D.A.U.)	in.	23.62	23.62
		mm	600	600
Maximum upper die weight	lbs.	47.24	47.24
		Kgs	1200	1200
Bolster area (L - R x F - B)	in.	31.50 x 39.37	31.50 x 39.37
		mm	800 x 1000	800 x 1000
Slide area (L - R x F - B)	in.	31.50 x 31.50	31.50 x 31.50
		mm	800 x 800	800 x 800
Slide adjustment	in.	0.59	0.59
		mm	15	15
Bolster thickness	in.	7.87	7.87
		mm	200	200
Air pressure required	PSI	71.12	71.12
		kg / cm2	5	5
Main motor	HP	100	100
Bed Knockout Device
Type		S	V
Capacity	US Tons	55	55
		Metric Tons	50	50
Stroke length	in.	3.94	3.94
		mm	100	100

KP-2000

MODEL KP-2000 SPECIFICATIONS
Type		S	V
Capacity	US Tons	2204	2204
		Metric Tons	2000	2000
Rated tonnage point	in.	0.32	0.32
		mm	8	8
Stroke Length	in.	7.09	7.09
		mm	180	180
Speed	SPM	22 ~ 32	22 ~ 32
Die height (S.D.A.U.)	in.	21.65	21.65
		mm	550	550
Maximum upper die weight	lbs.	4409.25	4409.25
		Kgs	2000	2000
Bolster area (L - R x F - B)	in.	39.37 x 31.50	39.37 x 31.50
		mm	1000 x 800	1000 x 800
Slide area (L - R x F - B)	in.	31.50 x 27.56	31.50 x 27.56
		mm	800 x 700	800 x 700
Slide adjustment	in.	0.59	0.59
		mm	15	15
Bolster thickness	in.	9.84	9.84
		mm	250	250
Air pressure required	PSI	71.12	71.12
		kg / cm2	5	5
Main motor	HP	150	150
Bed Knockout Device
Type		S	V
Capacity	US Tons	88	88
		Metric Tons	80	80
Stroke length	in.	3.15	3.15
		mm	80	80

KP-Up to 4,000 Tons

Specifications available on request.

Give us a call at 931-393-5050 or complete our request form.

Press Advantages

The slide on our KP Series cold forging machine is connected to the crankshaft by a linked knuckle mechanism that adapts the revolution of the crankshaft to the up-and-down motion of the slide, achieving a mechanical advantage that supplies very high tonnage near the bottom of the stroke.

Standard Features

• Near net-shape forming
• Better mechanical characteristics
• Superior plasticity
• Good surface quality
• Higher productivity

Optional Features

• Bottom Scrap tank (Front side)
• VS Motor (APC optional)
• Photo electronic safety guard
• Anti Vibration Mount
• Foundation Plate and Anchor Bolts
• Safety Block and Plug
• Die Room Light
• Hydraulic Slide Knock-out Device
• Hydraulic Die Cushion

Please contact Stamtec for information concerning components for our KP Series steel stamping machines.