Straight Side Crank Press | SEYI Machinery

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SAG Series｜Straight Side Crank Press

Needing a workhorse? The SAG series is the workaholic that is always taking shifts at the factory.
Its long history of power, precision, and reliability gives manufacturers the peace of mind knowing their plant can handle the toughest, grittiest jobs. Manufacturers looking to complete medium to large operations should look no further. The SAG series is engineered specifically for the most common, yet challenging operations today.

Model : SAG2-300~1200 / SAG4-400~1200

Catalogs

# Tandem Press Line

# Blanking Line

# Transfer

# Progressive Die

# Tonnage(kN) 3000~6500

# Tonnage(kN) 8000~12000

# Stroke Length 300↓

# Stroke Length 300~450

# Bolster Area(L-R) 2500↓

# Bolster Area(L-R) 2500~3400

# Bolster Area(L-R) 3400↑

The SAG is SEYI’s recommended mechanical press for medium to large operations using automatic feed, progressive die, and transfer systems.
The tie rod frame offers excellent rigidity to resist deflection for better stamping.
The design makes the integration and automation seamless. 99% of SAGs integrate with ancillary equipment.
The SAG features wide-spaced connecting rods to provide stability with various types of dies, giving manufacturers great flexibility.

SI Unit
Imperial Unit

Model				SAG2-300		SAG2-400		SAG2-500
Type				S	H	S	H	S	H
Capacity			kN	3000		4000		5000
Stroke Length			mm	300	200	400	250	450	250
Strokes per Minute			SPM	15~30	25~50	15~26	25~50	12~22	25~50
Tonnage Rating Point			mm	13	6.5	13	6.5	13	6.5
Die Height			mm	600		700		700
Slide Adjustment			mm	200		250		250
Slide Area(LR×FB)		1	mm	2200×1200		2500×1400		2500×1450
		2		2500×1200		2800×1400		2800×1450
		3		2800×1200		3100×1400		3100×1450
		4		3100×1200		3400×1400		3400×1450
		5		3400×1200		3700×1400		3700×1450
Bolster Area(LR×FB)		1	mm	2200×1370		2500×1400		2500×1450
		2		2500×1370		2800×1400		2800×1450
		3		2800×1370		3100×1400		3100×1450
		4		3100×1370		3400×1400		3400×1450
		5		3400×1370		3700×1400		3700×1450
Bolster Thickness			mm	180		180		180
Window Opening	Bolster Only	FB × UD	mm	1000×500		1100×600		1200×600
	Front to Back Rolling Bolster			1000×500		1100×600		1200×600
	Left to Right Rolling Bolster			1670×700		1700×800		1750×800
Max. Upper Die Weight*			Ton	3		4		4.5
Required Air Pressure			MPa	0.55		0.55		0.55
Bolster Height	Fixed Bolster		mm	850		850		850
	Rolling Bolster			660		660		660
Main Motor	w/o Die Cushion		kW×P	37×4		45×4		55×4
	w/ Die Cushion
Die Cushion	Type**			bellows		cylinder		cylinder
	Capacity		kN	550	—	600	—	800	—
	Stroke Length		mm	150	—	200	—	220	—
	Adjustment		mm	—	—	200	—	220	—
Cushion Pad Area(LR×FB)		1	mm	1700×900	—	2000×900	—	2000×950	—
		2		2000×900	—	2300×900	—	2300×950	—
		3		2300×900	—	2600×900	—	2600×950	—
		4		2600×900	—	2900×900	—	2900×950	—

Model				SAG2-600		SAG2-800
Type				S	H	S	H
Capacity			kN	6000		8000
Stroke Length			mm	450	250	450	300
Strokes per Minute			SPM	12~22	25~50	10~20	20~40
Tonnage Rating Point			mm	13	6.5	13	6.5
Die Height			mm	700		800
Slide Adjustment			mm	250		300
Slide Area(LR×FB)		1	mm	2500×1550		2800×1550
		2		2800×1550		3100×1550
		3		3100×1550		3400×1550
		4		3400×1550		3700×1550
		5		3700×1550		4000×1550
Bolster Area(LR×FB)		1	mm	2500×1550		2800×1550
		2		2800×1550		3100×1550
		3		3100×1550		3400×1550
		4		3400×1550		3700×1550
		5		3700×1550		4000×1550
Bolster Thickness			mm	250		250
Window Opening	Bolster Only	FB × UD	mm	1300×600		1500×700
	Front to Back Rolling Bolster			1300×600		1500×700
	Left to Right Rolling Bolster			1850×800		1850×900
Max. Upper Die Weight*			Ton	5		5.5
Required Air Pressure			MPa	0.55		0.55
Bolster Height	Fixed Bolster		mm	850		850
	Rolling Bolster			660		660
Main Motor	w/o Die Cushion		kW×P	55×4		75×4
	w/ Die Cushion
Die Cushion	Type**			cylinder		cylinder
	Capacity		kN	1000	—	1200***	—
	Stroke Length		mm	220	—	220	—
	Adjustment		mm	220	—	220	—
Cushion Pad Area(LR×FB)		1	mm	2000×950	—	2300×950	—
		2		2300×950	—	2600×950	—
		3		2600×950	—	2900×950	—
		4		2900×950	—	3200×950	—

Model				SAG2-1000		SAG2-1200
Type				S	H	S	H
Capacity			kN	10000		12000
Stroke Length			mm	450	300	450	300
Strokes per Minute			SPM	10~20	20~40	10~20	20~40
Tonnage Rating Point			mm	13	6.5	13	6.5
Die Height			mm	800		800
Slide Adjustment			mm	300		300
Slide Area(LR×FB)		1	mm	3100×1550		3400×1550
		2		3400×1550		3700×1550
		3		3700×1550		4000×1550
		4		4000×1550		4300×1550
		5		4300×1550		4600×1550
Bolster Area(LR×FB)		1	mm	3100×1550		3400×1550
		2		3400×1550		3700×1550
		3		3700×1550		4000×1550
		4		4000×1550		4300×1550
		5		4300×1550		4600×1550
Bolster Thickness			mm	250		300
Window Opening	Bolster Only	FB × UD	mm	1500×700		1500×700
	Front to Back Rolling Bolster			1500×700		1500×700
	Left to Right Rolling Bolster			1850×900		1850×900
Max. Upper Die Weight*			Ton	6		7
Required Air Pressure			MPa	0.55		0.55
Bolster Height	Fixed Bolster`		mm	850		850
	Rolling Bolster			740		740
Main Motor	w/o Die Cushion		kW×P	90×4		90×4
	w/ Die Cushion					110×4
Die Cushion	Type**			cylinder		cylinder
	Capacity		kN	1500	—	2000	—
	Stroke Length		mm	220	—	220	—
	Adjustment		mm	220	—	220	—
Cushion Pad Area(LR×FB)		1	mm	2600×950	—	2900×950	—
		2		2900×950	—	3200×950	—
		3		3200×950	—	3500×950	—
		4		3500×950	—	3800×950	—

Model				SAG4-500		SAG4-600
Type				S	H	S	H
Capacity			kN	500		600
Stroke Length			mm	450	250	450	250
Strokes per Minute			SPM	12~22	25~50	12~22	25~50
Tonnage Rating Point			mm	13	6.5	13	6.5
Die Height			mm	700		700
Slide Adjustment			mm	250		250
Slide Area(LR×FB)		1	mm	2500×2000		2500×2000
		2		2800×2000		2800×2000
		3		3100×2000		3100×2000
		4		3400×2000		3400×2000
		5		3700×2000		3700×2000
Bolster Area(LR×FB)		1	mm	2500×2000		2500×2000
		2		2800×2000		2800×2000
		3		3100×2000		3100×2000
		4		3400×2000		3400×2000
		5		3700×2000		3700×2000
Bolster Thickness			mm	180		250
Window Opening	Bolster Only	FB × UD	mm	1800×600		1800×600
	Front to Back Rolling Bolster			1800×600		1800×600
	Left to Right Rolling Bolster			2300×800		2300×800
Max. Upper Die Weight*			Ton	7		8
Required Air Pressure			MPa	0.55		0.55
Bolster Height	Fixed Bolster		mm	850		850
	Rolling Bolster			660		660
Main Motor	w/o Die Cushion		kW×P	55×4		55×4
	w/ Die Cushion
Die Cushion	Type**			cylinder		cylinder
	Capacity		kN	800		1000	—
	Stroke Length		mm	220		220	—
	Adjustment		mm	220		220	—
Cushion Pad Area(LR×FB)		1	mm	2000×1300	—	2000×1300	—
		2		2300×1300	—	2300×1300	—
		3		2600×1300	—	2600×1300	—
		4		2900×1300	—	2900×1300	—

Model				SAG4-800		SAG4-1000		SAG4-1200
Type				S	H	S	H	S	H
Capacity			kN	800		1000		1200
Stroke Length			mm	450	300	450	300	450	300
Strokes per Minute			SPM	10~20	20~40	10~20	20~40	10~20	20~40
Tonnage Rating Point			mm	13	6.5	13	6.5	13	6.5
Die Height			mm	800		800		800
Slide Adjustment			mm	300		300		300
Slide Area(LR×FB)		1	mm	2800×2200		3100×2200		3400×2200
		2		3100×2200		3400×2200		3700×2200
		3		3400×2200		3700×2200		4000×2200
		4		3700×2200		4000×2200		4300×2200
		5		4000×2200		4300×2200		4600×2200
Bolster Area(LR×FB)		1	mm	2800×2200		3100×2200		3400×2200
		2		3100×2200		3400×2200		3700×2200
		3		3400×2200		3700×2200		4000×2200
		4		3700×2200		4000×2200		4300×2200
		5		4000×2200		4300×2200		4600×2200
Bolster Thickness			mm	250		250		300
Window Opening	Bolster Only	FB × UD	mm	2000×700		2000×700		2000×700
	Front to Back Rolling Bolster			2000×700		2000×700		2000×700
	Left to Right Rolling Bolster			2500×900		2500×900		2500×900
Max. Upper Die Weight*			Ton	9		9		10
Required Air Pressure			MPa	0.55		0.55		0.55
Bolster Height	Fixed Bolster		mm	850		850		850
	Rolling Bolster			660		740		740
Main Motor	w/o Die Cushion		kW×P	75×4		90×4		90×4
	w/ Die Cushion							110×4
Die Cushion	Type**			cylinder		cylinder		cylinder
	Capacity		kN	1200*	—	1500	—	2000	—
	Stroke Length		mm	220	—	220	—	220	—
	Adjustment		mm	220	—	220	—	220	—
Cushion Pad Area(LR×FB)		1	mm	2300×1500	—	2600×1500	—	2900×1500	—
		2		2600×1500	—	2900×1500	—	3200×1500	—
		3		2900×1500	—	3200×1500	—	3500×1500	—
		4		3200×1500	—	3500×1500	—	3800×1500	—

* Max. Upper Die Weight may vary in table size. Please contact your sales representative for more information.
* * For selecting 1200kN, 1500kN and 2000kN air cylinder die cushions, bolster area in FB should be at least 1700mm, cushion area in FB should be 1300mm.
*** For SAG2-800-1, only 1000kN die cushion is available.
* For SAG4-800-1, only 1000kN die cushion is available
※ Slide and bolster area up to 5500x1550 by request.
※ This specification is subject to change without notice.

Model				SAG2-330		SAG2-440		SAG2-550
Type				S	H	S	H	S	H
Capacity			U.S. Ton	330		440		550
Stroke Length			in	11.81	7.87	15.75	9.84	17.72	9.84
Strokes per Minute			SPM	15~30	25~50	15~26	25~50	12~22	25~50
Tonnage Rating Point			in	0.51	0.26	0.51	0.26	0.51	0.26
Die Height			in	23.62		27.56		27.56
Slide Adjustment			in	7.87		9.84		9.84
Slide Area(LR×FB)		1	in	86.61×47.24		98.42×55.11		98.42×57.09
		2		98.42×47.24		110.23×55.11		110.23×57.09
		3		110.23×47.24		122.04×55.11		122.04×57.09
		4		122.04×47.24		133.85×55.11		133.85×57.09
		5		133.85×47.24		145.67×55.11		145.67×57.09
Bolster Area(LR×FB)		1	in	86.61×53.93		98.42×55.11		98.42×57.09
		2		98.42×53.93		110.23×55.11		110.23×57.09
		3		110.23×53.93		122.04×55.11		122.04×57.09
		4		122.04×53.93		133.85×55.11		133.85×57.09
		5		133.85×53.93		145.67×55.11		145.67×57.09
Bolster Thickness			in	7.09		7.09		7.09
Window Opening	Bolster Only	FB × UD	in	39.37×19.68		43.31×23.62		47.24×23.62
	Front to Back Rolling Bolster			39.37×19.68		43.31×23.62		47.24×23.62
	Left to Right Rolling Bolster			65.74×27.56		66.93×31.5		68.9×31.5
Max. Upper Die Weight*			LBS	6600		8800		9900
Required Air Pressure			PSI	85.34		85.34		85.34
Bolster Height	Fixed Bolster		in	33.46		33.46		33.46
	Rolling Bolster			25.98		25.98		25.98
Main Motor	w/o Die Cushion		HP×P	50×4		60×4		75×4
	w/ Die Cushion
Die Cushion	Type**			bellows		cylinder		cylinder
	Capacity		U.S. Ton	60.5		66		88
	Stroke Length		in	5.91		7.87		8.66
	Adjustment		in	—		7.87		8.66
Cushion Pad Area(LR×FB)		1	in	66.92×35.43	—	78.74×35.43	—	78.74×37.4	—
		2		78.74×35.43	—	90.55×35.43	—	90.55×37.4	—
		3		90.55×35.43	—	102.36×35.43	—	102.36×37.4	—
		4		102.36×35.43	—	114.17×35.43	—	114.17×37.4	—

Model				SAG2-660		SAG2-880
Type				S	H	S	H
Capacity			U.S. Ton	660		880
Stroke Length			in	17.72	9.84	17.72	11.81
Strokes per Minute			SPM	12~22	25~50	10~20	20~40
Tonnage Rating Point			in	0.51	0.26	0.51	0.26
Die Height			in	27.56		31.50
Slide Adjustment			in	9.84		11.81
Slide Area(LR×FB)		1	in	98.42×61.02		110.23×61.02
		2		110.23×61.02		122.04×61.02
		3		122.04×61.02		133.85×61.02
		4		133.85×61.02		145.67×61.02
		5		145.67×61.02		157.48×61.02
Bolster Area(LR×FB)		1	in	98.42×61.02		110.23×61.02
		2		110.23×61.02		122.04×61.02
		3		122.04×61.02		133.85×61.02
		4		133.85×61.02		145.67×61.02
		5		145.67×61.02		157.48×61.02
Bolster Thickness			in	9.84		9.84
Window Opening	Bolster Only	FB × UD	in	51.18×23.62		59.06×27.56
	Front to Back Rolling Bolster			51.18×23.62		59.06×27.56
	Left to Right Rolling Bolster			72.83×31.5		72.83×35.43
Max. Upper Die Weight*			LBS	11000		12100
Required Air Pressure			PSI	85.34		85.34
Bolster Height	Fixed Bolster		in	33.46		33.46
	Rolling Bolster			25.98		25.98
Main Motor	w/o Die Cushion		HP×P	75×4		100×4
	w/ Die Cushion
Die Cushion	Type**			cylinder		cylinder
	Capacity		U.S. Ton	110		132(**)
	Stroke Length		in	8.66		8.66
	Adjustment		in	8.66		8.66
Cushion Pad Area(LR×FB)		1	in	78.74×37.4	—	90.55×51.18	—
		2		90.55×37.4	—	102.36×51.18	—
		3		102.36×37.4	—	114.17×51.18	—
		4		114.17×37.4	—	125.98×51.18	—

Model				SAG2-1100		SAG2-1320
Type				S	H	S	H
Capacity			U.S. Ton	1100		1320
Stroke Length			in	17.72	11.81	17.72	11.81
Strokes per Minute			SPM	10~20	20~40	10~20	20~40
Tonnage Rating Point			in	0.51	0.26	0.51	0.26
Die Height			in	31.50		31.50
Slide Adjustment			in	11.81		11.81
Slide Area(LR×FB)		1	in	122.04×61.02		133.85×61.02
		2		133.85×61.02		145.67×61.02
		3		145.67×61.02		157.48×61.02
		4		157.48×61.02		169.29×61.02
		5		169.29×61.02		181.1×61.02
Bolster Area(LR×FB)		1	in	122.04×61.02		133.85×61.02
		2		133.85×61.02		145.67×61.02
		3		145.67×61.02		157.48×61.02
		4		157.48×61.02		169.29×61.02
		5		169.29×61.02		181.1×61.02
Bolster Thickness			in	9.84		11.81
Window Opening	Bolster Only	FB × UD	in	59.06×27.56		59.06×27.56
	Front to Back Rolling Bolster			59.06×27.56		59.06×27.56
	Left to Right Rolling Bolster			72.83×35.43		72.83×35.43
Max. Upper Die Weight*			LBS	13200		15400
Required Air Pressure			PSI	85.34		85.34
Bolster Height	Fixed Bolster		in	33.46		33.46
	Rolling Bolster			29.13		29.13
Main Motor	w/o Die Cushion		HP×P	125×4		125×4
	w/ Die Cushion					150×4
Die Cushion	Type**			cylinder		cylinder
	Capacity		U.S. Ton	165		220
	Stroke Length		in	8.66		8.66
	Adjustment		in	8.66		8.66
Cushion Pad Area(LR×FB)		1	in	102.36×51.18	—	114.17×51.18	—
		2		114.17×51.18	—	125.98×51.18	—
		3		125.98×51.18	—	137.8×51.18	—
		4		137.8×51.18	—	149.61×51.18	—

Model				SAG4-550		SAG4-660		SAG4-880
Type				S	H	S	H	S	H
Capacity			U.S. Ton	550		660		880
Stroke Length			in	17.72	9.84	17.72	9.84	17.72	11.81
Strokes per Minute			SPM	12~22	25~50	12~22	25~50	10~20	20~40
Tonnage Rating Point			in	0.51	0.26	0.51	0.26	0.51	0.26
Die Height			in	27.56		27.56		31.50
Slide Adjustment			in	9.84		9.84		11.81
Slide Area(LR×FB)		1	in	98.43×78.74		98.43×78.74		110.24×86.61
		2		110.24×78.74		110.24×78.74		122.05×86.61
		3		122.05×78.74		122.05×78.74		133.86×86.61
		4		133.86×78.74		133.86×78.74		145.67×86.61
		5		145.67×78.74		145.67×78.74		157.48×86.61
Bolster Area(LR×FB)		1	in	98.43×78.74		98.43×78.74		110.24×86.61
		2		110.24×78.74		110.24×78.74		122.05×86.61
		3		122.05×78.74		122.05×78.74		133.86×86.61
		4		133.86×78.74		133.86×78.74		145.67×86.61
		5		145.67×78.74		145.67×78.74		157.48×86.61
Bolster Thickness			in	7.09		9.84		9.84
Window Opening	Bolster Only	FB × UD	in	70.87×23.62		70.87×23.62		78.74×27.55
	Front to Back Rolling Bolster			70.87×23.62		70.87×23.62		78.74×27.55
	Left to Right Rolling Bolster			90.55×31.50		90.55×31.50		98.43×35.43
Max. Upper Die Weight*			LBS	15400		17600		19800
Required Air Pressure			PSI	85.34		85.34		85.34
Bolster Height	Fixed Bolster		in	25.98		25.98		25.98
	Rolling Bolster			25.98		25.98		25.98
Main Motor	w/o Die Cushion		HP×P	75×4		75×4		100×4
	w/ Die Cushion
Die Cushion	Type**			cylinder		cylinder		cylinder
	Capacity		U.S. Ton	88		110	-	132(*)	—
	Stroke Length		in	8.66		8.66	—	8.66	—
	Adjustment		in	8.66		8.66	—	8.66	—
Cushion Pad Area(LR×FB)		1	in	78.74×51.18		78.74×51.18	—	90.55×59.06	—
		2		90.55×51.18		90.55×51.18	—	102.36×59.06	—
		3		102.36×51.18		102.36×51.18	—	114.17×59.06	—
		4		114.17×51.18		114.17×51.18	—	125.98×59.06	—

Model				SAG4-1100		SAG4-1320
Type				S	H	S	H
Capacity			U.S. Ton	1100		1320
Stroke Length			in	17.72	11.81	17.72	11.81
Strokes per Minute			SPM	10~20	20~40	10~20	20~40
Tonnage Rating Point			in	0.51	0.26	0.51	0.26
Die Height			in	31.50		31.50
Slide Adjustment			in	11.81		11.81
Slide Area(LR×FB)		1	in	122.05×86.61		133.86×86.61
		2		133.86×86.61		145.67×86.61
		3		145.67×86.61		157.48×86.61
		4		157.48×86.61		169.29×86.61
		5		169.29×86.61		181.1×86.61
Bolster Area(LR×FB)		1	in	122.05×86.61		133.86×86.61
		2		133.86×86.61		145.67×86.61
		3		145.67×86.61		157.48×86.61
		4		157.48×86.61		169.29×86.61
		5		169.29×86.61		181.1×86.61
Bolster Thickness			in	9.84		11.81
Window Opening	Bolster Only	FB × UD	in	78.74×27.55		78.74×27.55
	Front to Back Rolling Bolster			78.74×27.55		78.74×27.55
	Left to Right Rolling Bolster			98.43×35.43		98.43×35.43
Max. Upper Die Weight*			LBS	19800		22000
Required Air Pressure			PSI	85.34		85.34
Bolster Height	Fixed Bolster		in	29.13		29.13
	Rolling Bolster			29.13		29.13
Main Motor	w/o Die Cushion		HP×P	125×4		125×4
	w/ Die Cushion					150×4
Die Cushion	Type**			cylinder		cylinder
	Capacity		U.S. Ton	165	—	220	—
	Stroke Length		in	8.66	—	8.66	—
	Adjustment		in	8.66	—	8.66	—
Cushion Pad Area(LR×FB)		1	in	223.62×59.06	—	114.17×59.06	—
		2		114.17×59.06	—	125.98×59.06	—
		3		125.98×59.06	—	137.8×59.06	—
		4		137.8×59.06	—	149.61×59.06	—

* Max. Upper Die Weight may vary in table size. Please contact your sales representative for more information.
* * For selecting 120ton, 165ton and 220ton air cylinder die cushions, bolster area in FB should be at least 1700mm, cushion area in FB should be 1300mm.
*** For SAG2-880-1, only 110ton die cushion is available.
* For SAG4-880-1, only 110ton die cushion is available
※ Slide and bolster area up to 5500x1550 by request.
※ This specification is subject to change without notice.

Main Frame:

The fabricated steel frames exceed the strictest standards in International Press Building.

Each frame is tested with Finite Element Analysis before fabrication to allow the deep crown to resist stamping force deflection while housing the drive system.

SEYI uses state-of-the-art boring mills, right-angle milling heads, and rotary tables to maximize accuracy and productivity.

Bed Assembly:

The bed is constructed with fabricated steel plates and front-to-back stiffening ribs to better resist deflection.

The bed houses oil troughs to collect and recycle excess die lubrication, saving manufacturers in operating costs.

To ensure the highest degree of accuracy, the bed’s rear surface has locating holes machined in to set the bolster plate to an exact position.

Bolster Plate:

The bolster plate’s design gives customers two unique advantages.

Machined to JIS standards with T-slots, the bolster allows for quick clamping of the die. Additionally, a U-slot on the L-R centerline assures that die and tooling are perfectly centered in relation to automation equipment.

The bolster plate can also be customized for special tooling, such as scrap removal, pneumatic die cushions, and so on.

Slide Body:

The slide body is a reinforced steel structure designed for maximum resistance to deflection. The lower section of the slide has steel stiffening ribs running left to right and front to back, a design that was meticulously engineered after thorough Finite Element Analysis. The slide is capable of accepting up to three knockout bars.

The slide also houses the slide adjustment mechanism and an electronically monitored distribution block that feeds the bronze running gib surfaces. In addition, an electronic or digital slide adjustment readout integrates into the slide to indicate the die height in 0.1mm or 0.01mm increments respectively. As a safety precaution, the slide adjustment system has upper and lower limit switches to prevent travel beyond limits.

Upright Assembly:

All uprights are constructed with fabricated steel plates for a total of four individual uprights.

The air counterbalance system creates upward pressure on the slide to equalize the slide unit and upper die weight. A metal graph chart displays proper air pressure to compensate for upper die weight in the static/no run condition.

The large side window openings permit easy left-to-right access for automation equipment. Die area lighting is also built into the uprights.

Center Drive Crown Assembly:

The double point center drive is recessed at the top center of the crown structure. Center drive construction is proven to withstand off-center loads and resist the twisting effect that occurs in end-drive presses.

Each of our bull gears undergoes a meticulous manufacturing process, ensuring precision-crafted running surfaces for smooth, quiet performance. A specialized surface-hardening treatment is applied to guarantee long-lasting strength and durability, providing reliable operation for years to come. Every gear is rigorously tested to meet and exceed international standards, ensuring quality and performance.

Connecting Rods:

Connecting rods have replaceable bronze bushings that ride on the crankshaft. This area is automatically lubricated via a filtered lubrication system. The lower portion of the connecting rods is alloy steel and threaded to receive the mating ball screw. This connecting point is also automatically lubricated.

This wide-set design of the connecting rods optimizes progressive and transfer die operations.

The engineering of the connecting rods provides optimum spacing to resist off-centered loading and strain from slide tilt. This wide-set design of the connecting rods optimizes progressive and transfer die operations.

Main Motor:

Dual voltage, eddy current motors come standard for the most efficient operating speed. Motor rotational direction control is located at the main console with three positions: Forward, Flywheel brake on, and reverse.

The press speed is displayed on both digital and gauge-type readouts located on the main console. The digital readouts provide real-time data on both the press speed and current stroke position. Additionally, a convenient thumbwheel speed adjustment knob is integrated into the main console, allowing for quick and easy speed adjustments.

The main motor’s adjustable mounting bracket mounts to the center drive box via rubber shock mounts to reduce vibration.

Adjustable screws integrated into the motor allow for simple adjustments of the flywheel belt.

Wet Clutch & Brake:

The wet clutch-brake sits directly in the rotating flywheel. Hubs are designed with an interference fit to the pinion shaft to ensure a “no slip” lock. Additionally, the linings and plates have a spline interface to the hubs that transmit full torque to control the shaft with excellent starting and stopping times.

SEYI’s wet clutch-brake features an air-actuated clutch and spring-applied brake. It runs in an automatic transmission fluid bath that bathes the system. This system gives the SAG series multiple advantages:
• Virtually no plate wear
• Excellent thermal stability
• Copper corrosion protection and seal compatibility
• Higher intermittent stroke performance

The flywheel also has a pneumatic flywheel brake mounts to the center drive housing. The main operating station controls the flywheel which allows it to quickly stop when the die is in maintenance.

Hydraulic Overload Protection (HOLP):

All SEYI SAG presses house hydraulic overload protection system, which activates at 110% press capacity. This system prevents the press from operating beyond its intended capacity, damaging the major drive components. In the event the HOLP system activates, the press can return to production in minutes as opposed to presses without a HOLP.

When activated, oil dumps from the HOLP cylinders to the oil reservoir, the press immediately stops and can only be operated in “Inch” mode.

In addition to protecting the press, the SEYI’s HOLP performs the following functions:
• Protect your tooling
• Sense a die that needs sharpening
• Reduce connection clearances
• Sense off-center loads

Automatic Recirculating Oil Lubrication:

SEYI’s lubrication system preserves press lifespan, minimizes maintenance, and maximizes lubrication efficiency.

The oil regulator and system pressure gauge are on the tank. The tank is equipped with filtered-breather caps, an oil gauge, and access panels to clean the tank quickly.

When powered on, the lubrication system must reach pressure turning on the console’s green lube light before the main motor can start.

Slide Guidance System:

The slide guidance system ensures repeatability, accuracy, and increased die life.

The SAG series features an eight-point slide guidance system that runs with no more than 0.003” running clearance, thanks to a pull-pull screw. The press columns have an adjustable gib structure that allows for simple alignments and clearance adjustments.

The slideways are constructed with replaceable, wear-resistant sintered metal, which are automatically lubricated for simple maintenance.

Pneumatic Systems:

The SAG series is equipped with an air-operated clutch-brake, twin air counterbalance cylinders, flywheel brake, air over-oil HOLP system, blow-off systems for part ejection, and 3/8” receptacles for air tools.

An air system drain allows moisture and excessive oil build-up to drain from the various air surge tanks. An in-line pressure switch monitors air pressure and is tied to the emergency stop circuit if limits are exceeded. The air control center houses a clutch-brake pressure gauge, ACD pressure gauge, and adjustable regulator.

Introduction to Straight Side Crank Press (SAG series)

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SAG Series｜Straight Side Crank Press

Straight Side Crank Press_SAG series_Auto parts