NXT DOUBLE LINK MOTION PRESS

YAMADA DOBBY'S #1 SELLER

Double Link Motion, Straight Side Press 25 to 200 ton Capacity Models and speed up to 1200 SPM Fully Automatic Stroke lenght Frame temperature controlled by Heat & Cool system Four Post / Two Plunger Guides Full Dynamic Balancer Color Touch Screen panel with Automatic Setting System (100 tool data memory)

NXT - 25

As Metalforming Technologies enter the 21st Century, quality, accuracy, efficiency, and cost are the key concerns of the end user. These are the four key factors that influenced the development of the "NXT Double Link Motion Press". With today's global competition, suppliers of high precision formed parts, narrow pitch connectors, and leadframes must be able to supply the industry with the highest quality parts at the lowest possible cost. The highest quality can be accomplished by increasing the accuracy of the stamping equipment and reducing the vibration that is created by the actual stamping. A lower cost per part is accomplished by increasing the die life, increasing running speed and decreasing die setup time. The concept of designing the "NXT Double Link Motion Press" was to offer a stamping press that will give stamping facilities a competitive edge in a competitive global market by producing higher quality cost efficient parts.

BENEFITS OF SPEED REDUCTION:

With the "NXT Double Link Motion Press" the speed of the ram is decreased by 62% at 1mm (0.039") from the BDC. This is in comparison to the standard crank motion press. The punch of the die will enter the material (thickness of 1mm) 58.2ms before the slide reaches BDC. With the standard crank motion press the punch of the die will enter the same material 36.2ms before BDC. This equals a total of 44ms additional stamping time with each stroke of the press. A good way to invision the advantage of a Double Link Motion is to think of a crank motion press hammering the product in the form of a jackhammer compared to a Double Link Motion pressing the product in the form of a molding machine. The variation of distorted pitch and width is reduced in the manufacturing of narrow pitched, formed connectors and leadframes with many pins. In all metals there is some degree of trapped stress. When this material is stamped the trapped stress causes spring back of the material. This spring back causes distortion in the stamped product. This distortion can be found in formed parts such as connectors where the distance between narrow pitches is crucial or in leadframes with many pins where the position and distance between the pins are crucial. With the speed reduction of the "NXT Double Link Motion Press", these distortions are reduced. They are reduced because of the additional time that it takes for the slide to enter, pass through and exit the material. This additional time allows more of the trapped stress to be released while the punches of the die are still holding the correct form or position of the product. In addition, the quantity of slugs that are sometimes pulled by the die can be reduced due to the reduced shock speed at the BDC. By holding the slugs at the BDC for a longer time, it reduces the chances of the slug being pulled out as the die returns to the TDC.

INCREASED EFFICIENCY:

The "NXT Double Link Motion Press" can allow 1.6 times faster die stamping speed than a conventional crank press. For example, a die that is operating in a crank press at 500spm enters and exits the BDC at 500spm. The velocity of the die is the same throughout the cycle of the press. Put the same die in a "NXT Double Link Motion Press" at 500spm and the velocity of the die is 310spm as it enters and exits the BDC. The speed of the slide increases to the velocity of 690spm as it passes over the Top Dead Center (TDC). With these effects, you are still operating at 500spm but the die life and part quality would be as if you were operating at 310spm. With this in mind, consider the opportunities of running dies that normally operate at 310spm at an increased speed of 500spm.

DECREASED NOISE AND VIBRATION:

One of the most damaging factors to a die punch is the vibration created during the stamping operation. The vibrations are measured on the X, Y, and Z axis. Design concept that include the deceleration of the slide at BDC, 4-Post / 2-Plunger Slide Guide, and rigid cast iron construction allow a reduction in vibration by as much as 100%. In addition, the reduction of shock speed and vibration directly impacts the noise level of the press. Testing has shown the noise level of a "NXT Double Link Motion Press" to be substantially lower when compared to a standard crank press. For example, the noise level of a 80 ton crank motion press measured 163.45db compared to the 80 ton "NXT Double Link Motion Press" which measured 70.83db. Less noise makes for an enjoyable work enviroment!

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NXT SERIES STANDARD EQUIPMENT

Color touch screen panel (100 tool memory data)	Dynamic Balancer	Oil Temperature Control System
SRF (Servo) roller Feeder	Motorized Auto Slide System	Inverter Controll Main Motor
Hydraulic adjust lock	Digital Crank Angle Indicator	Digital Die Height Indicator
Flywheel Brake	Automatic Setting System	Adjustable Stroke Control
Motor Reverse control	Auto Top Stop Contol	Micro Inching Contol
Dynamic vibration protectors	Jamming Seperator (Stickpin Type)	Stock Lubricator
Safety interlocked front & rear doors	Air Ejector	Air Gun
Inner material guide	Total Counter (8 digits)	Preset Counter (8 digits)
Variable speed control	Digital Cam (10 pcs. spare)	Die Lamp
Stop connector (4 pcs)	Tachometer (digital)	Hourmeter (digital)
Ammeter (digital)	Pressure Switch (Oil / Air)	Interlocked Pendant Switches
Waste Oil Tank	Plug Socket (100V / 200V)	Leakage Breaker

NXT SERIES OPTIONAL EQUIPMENT

Fixed Stroke version

Motorized Pass Line Adjustment

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NXT (25~40 TON) SERIES SPECIFICATIONS

Item	Specifications
Model	NXT - 25				NXT - 30					NXT - 40						NXT - 40L
Press Capacity (ton)	25 ton				30 ton					40 ton						40 ton
Stroke Length (mm)	15	20	25	30	13	15	20	25	30	15	20	25	30	35	40	16	25	30	35	40	48
Stroke per Minute (spm)	180	180	180	180	180	180	180	180	180	180	180	180	180	180	180	180	180	180	180	180	180
	1100	1000	900	800	1300	1200	1050	950	850	1000	850	750	700	500	400	1000	800	750	700	600	500
Die Height (mm)	224	224	224	225	225	225	225	225	225	261	262	262	263	264	265	264	264	265	266	267	268
Slide Adjustment (mm)	50				50					50						50
Bolster (mm)	640x450x90				640x450x120					760x590x100						950x650x120
Slide Lower Area (mm)	640x320				640x320					760x360						950x420
Side Opening (mm)	220				220					260						260
Motor (kw)	4p x 15				4p x 11					4p x 15						4p x 18.5
Weight (approx.) (ton)	5.9				7					8.7						10
Clutch and Brake	Air Friction Clutch and Brake
Lubrication Device	Automatic Circulation Lubrication

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NXT (45~60 ton) SERIES SPECIFICATIONS

Item	Specifications
Model	NXT - 45XL						NXT - 50XL						NXT - 60
Press Capacity (ton)	45 ton						50 ton						60 ton
Stroke Length (mm)	20	25	32	38	44	48	25	30	35	40	50	60	15	20	25	30	40	50
Stroke per Minute (spm)	180	180	180	180	180	180	150	150	150	150	150	150	150	150	150	150	150	150
	1000	900	800	750	680	620	700	650	600	500	400	350	800	750	700	650	400	450
Die Height (mm)	298	299	300	301	302	302	294	295	295	296	298	300	300	300	300	301	302	303
Slide Adjustment (mm)	50						50						50
Bolster (mm)	1100x650x120						1100x800x130						950x650x120
Slide Lower Area (mm)	1100x420						1100x420						950x420
Side Opening (mm)	260						340						260
Motor (kw)	4p x 22						4p x 22						4p x 22
Weight (approx.) (ton)	15						17						12.5
Clutch and Brake	Air Friction Clutch and Brake
Lubrication Device	Automatic Circulation Lubrication

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NXT (80~125 ton) SERIES SPECIFICATIONS

Item	Specifications
Model	NXT - 80						NXT - 80XL						NXT - 125
Press Capacity (ton)	80 ton						80 ton						125 ton
Stroke Length (mm)	20	25	30	40	50	63	16	25	30	40	50	65	25	30	40	50	60	80
Stroke per Minute (spm)	150	150	150	150	150	150	150	150	150	150	150	150	100	100	100	100	100	100
	650	600	550	400	350	250	800	620	550	400	350	250	400	400	350	300	250	200
Die Height (mm)	322	322	323	325	326	327	320	321	322	324	326	328	399	399	399	400	401	403
Slide Adjustment (mm)	50						50						80
Bolster (mm)	1100x800x130						1500x800x130						1350x800x160
Slide Lower Area (mm)	1100x540						1500x540						1350x600
Side Opening (mm)	340						340						430
Motor (kw)	4p x 30						4p x 37						4p x 37
Weight (approx.) (ton)	18.3						30						35
Clutch and Brake	Air Friction Clutch and Brake
Lubrication Device	Automatic Circulation Lubrication

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NXT (125L~200 ton) SERIES SPECIFICATIONS

Item	Specifications
Model	NXT - 125L						NXT - 150						NXT - 200
Press Capacity (ton)	125 ton						150 ton						200 ton
Stroke Length (mm)	25	30	40	50	60	80	30	40	50	60	70	80	30	40	50	60	80	100
Stroke per Minute (spm)	100	100	100	100	100	100	30	30	30	30	30	30	80	80	80	80	80	80
	400	400	350	300	250	200	320	300	270	220	190	170	300	275	250	200	150	120
Die Height (mm)	399	399	399	400	401	403	420	420	421	422	423	424	400	401	402	403	406	408
Slide Adjustment (mm)	80						80						80
Bolster (mm)	1500x800x160						1850x1000x200						1700x1000x200
Slide Lower Area (mm)	1500x600						1850x800						1700x800
Side Opening (mm)	430						430						450
Motor (kw)	4p x 37						4p x 45						4p x 45
Weight (approx.) (ton)	45						60						65
Clutch and Brake	Air Friction Clutch and Brake
Lubrication Device	Automatic Circulation Lubrication

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