http://www.dfoggknives.com/hydralic.htm
There is a booklet he sells there too which runs through specs and designs by an actual engineer.
-the Baston book
A pre made shop press is usually unsuitable because it achieves its high power with a large cylinder at a very slow stroke speed
A forging press is usually recommended to have at least 1 or 2 inches per second stroke speed so you can move metal while it is still hot.
If you start doing calculations you will see that it is easy to get a high tonnage, but at a slow stroke speed because of the volume of fluid required.
This takes a large pump and motor.
You may have to reach some sort of comprise on a slightly smaller 5" cylinder instead of 6".
It starts costing real $ to up your pump volume, motor HP and wiring size above 5 hp
Is 50 tons twice as good as 25 ? probably not as good as a fast 25
The larger size will allow you to run larger dies and keep the same PSI at the die level...but there must be a practical limit..
in the numbers Billy gave he is running psi is 21.5 tons
Buy the book , look at what others have done and do the calculations with what you can buy locally.
I would tend to stay with 5 or 6 inch cylinder, go larger on the pump volume and keep the pressure down to keep the stroke speed up so you can get more squeezes per heat in.
When the steel is hot, you wont' need huge pressures to move the steel and are better served by gradual reductions to preserve your patterns.
the difference between the pump volume at 5" and at 6" is significant.
Don Fogg's specs
10 hp dual pump hydraulic station pushing
16 gallons a minute at psi.
5" double acting hydraulic cylinder with an 8" throw.
Works out to 14.7 Tons
Indian George
SUPPLIER PART# DESCRIPTION COMMENTS
NORTHERN -C161 BARNES 2 STAGE PUMP -11GPM
-C161 PRINCE STANDARD 4-WAY CONTROL VALVE
-C161 7 GALLONS HYDRAULIC OIL TANK MUST CLEAN THE INSIDE WELL
-C161 RETURN LINE FILTER
-C161 SUCTION STRAINER THIS GOES INTO THE TANK
FITTINGS AND HOSES YOU WILL NEED 3 HI- PRESSURE HOSES AND LOW PRESSURE HOSE FOR THE RETURN.
-C161 GLYCERIN FILLED GAUGE 0-PSI
SURPLUS CENTER 10- ELECTRIC MOTOR I USE A 3 HP AT RPMS
09 HYDRAULIC CYLINDER I USE A 4 1/2" BORE X 8" STROKE WITH THE PUMP AND MOTOR SHOULD GENERATE 24 TONS
"If I ever build another one it would be a H press with a minimum 5" cylinder."
__________________
Eric Fleming
WIP with automated stroke timing
http://www.bladeforums.com/forums/showthread.php?t=&highlight=press
Material list
http://www.bladeforums.com/forums/attachment.php?attachmentid=&d=
Motor &#; 7.5 HP
Pump &#; Single stage 5.2 GPM (Single stage is necessary to get repeatable timing for an automated stroke)
Cylinder &#; 5&#; X 8&#; Stroke
calculations.
http://www.bladeforums.com/forums/attachment.php?attachmentid=&d=
**************
220V motors are practical in these sizes
Have a look at Don Fogg's page and don't miss the 5 or 6 other pages with links at the bottom of the page.There is a booklet he sells there too which runs through specs and designs by an actual engineer.-the Baston bookA pre made shop press is usually unsuitable because it achieves its high power with a large cylinder at a very slow stroke speedA forging press is usually recommended to have at least 1 or 2 inches per second stroke speed so you can move metal while it is still hot.If you start doing calculations you will see that it is easy to get a high tonnage, but at a slow stroke speed because of the volume of fluid required.This takes a large pump and motor.You may have to reach some sort of comprise on a slightly smaller 5" cylinder instead of 6".It starts costing real $ to up your pump volume, motor HP and wiring size above 5 hpIs 50 tons twice as good as 25 ? probably not as good as a fast 25The larger size will allow you to run larger dies and keep the same PSI at the die level...but there must be a practical limit..in the numbers Billy gave he is running psi is 21.5 tonsBuy the book , look at what others have done and do the calculations with what you can buy locally.I would tend to stay with 5 or 6 inch cylinder, go larger on the pump volume and keep the pressure down to keep the stroke speed up so you can get more squeezes per heat in.When the steel is hot, you wont' need huge pressures to move the steel and are better served by gradual reductions to preserve your patterns.the difference between the pump volume at 5" and at 6" is significant.10 hp dual pump hydraulic station pushing16 gallons a minute at psi.5" double acting hydraulic cylinder with an 8" throw.Works out to 14.7 TonsNORTHERN -C161 BARNES 2 STAGE PUMP -11GPM-C161 PRINCE STANDARD 4-WAY CONTROL VALVE-C161 7 GALLONS HYDRAULIC OIL TANK MUST CLEAN THE INSIDE WELL-C161 RETURN LINE FILTER-C161 SUCTION STRAINER THIS GOES INTO THE TANKFITTINGS AND HOSES YOU WILL NEED 3 HI- PRESSURE HOSES AND LOW PRESSURE HOSE FOR THE RETURN.-C161 GLYCERIN FILLED GAUGE 0-PSISURPLUS CENTER 10- ELECTRIC MOTOR I USE A 3 HP AT RPMS09 HYDRAULIC CYLINDER I USE A 4 1/2" BORE X 8" STROKE WITH THE PUMP AND MOTOR SHOULD GENERATE 24 TONS__________________with automated stroke timingMotor &#; 7.5 HPPump &#; Single stage 5.2 GPM (Single stage is necessary to get repeatable timing for an automated stroke)Cylinder &#; 5&#; X 8&#; Stroke**************220V motors are practical in these sizes
For more information, please visit tpypress.
Right now is the perfect time to evaluate your current production process to see where you can make improvements for better efficiency.
Adding a hydraulic press to your machine lineup could do wonders for your metalworking projects.
Faster and more dependable than ever before, a hydraulic press will a long way in speeding up your production time and streamlining your pressing process.
In this post, we will explore ten reasons why you should buy a hydraulic press for your metalworking shop.
#1 - Speed
Not only can a high-quality hydraulic press perform metal pressing tasks quickly, but the newer models are very efficient being easy to set up and change out.
You don&#;t have to worry about setting the stroke or finding the exact spot where maximum tonnage hits.
The pressing force can be delivered at any point in the stroke, making hydraulic presses faster than other machines. You can also change out dies quickly and move on to other tasks without a hitch.
#2 - Versatility
A hydraulic press can be used in a great number of applications that go far beyond pressing metal.
These versatile machines can be used for the following:
- Transfer Molding
- Rubber Compression
- Plastic Compression
- Ball Sizing
- Broaching
- Bonding
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- Straightening
- Press Fits
- Punching
- Staking
- Blanking
- Piercing
- Metal Forming
- Shell Reductions
- Deep Draws
- Urethane Bulging
- Assembly
- And More&#;
Because of the versatility of hydraulic presses, these machines can be used to tackle all sorts of metalworking projects.
#3 - Power
The maximum pressing power of the hydraulic press can be applied at any point in the stroke. Here at Dake, we offer various hydraulic presses that range from 10- to 200-tons of pressing power.
Some of our machines even have a built-in pressure preset and lockout to prevent the press from exceeding the maximum amount of tonnage allowed. This allows the operator to maintain complete control over an incredibly powerful machine.
#4 - Safety
The overload protection is just one of many safety features on our hydraulic presses. No matter which model you get, we guarantee that it will be sturdy, durable, and reliable.
Common safety equipment that comes standard on our hydraulic presses includes steel table plates, a heavy-duty/arc-welded steel frame, flat ram nose, self-locking table hoist, pressure gauge, and safety release valve.
Whether you are using a hand-operated, electronic, or air-operated hydraulic press, you can rest assured that you are operating on the safest machine viable on the market today.
For more information, please visit Industrial Metal Press.
#5 - Affordability
Our entire line of hydraulic presses was created to suit all sorts of budgets. You can get the exact machine that you need without any hidden fees.
Our presses are also cost-efficient to operate, more so than other mechanical presses. This is because our hydraulic presses operate with fewer moving parts, and those components are well lubricated.
With proper care and maintenance, these presses will break down less often than their mechanical counterparts.
Even when an issue occurs, the cost of replacing solenoid coils or a valve is very inexpensive. So, you end up saving money initially and in the long run.
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As we touched on briefly before, you can work on a wide range of projects depending on which hydraulic press you choose.
Currently, we offer nine different categories of hydraulic presses including the following:
- Hand Operated Presses
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Each category offers various sizes for a total of 33 different hydraulic press models. In other words, we&#;ve got a hydraulic press that is perfect for whatever metalworking project you decide to take on.
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A hydraulic press is a machine that offers more control than others. As the operator, you can adjust the force, direction, speed, duration, and release of the ram. Dial the pressure down for lighter dies, and ump it up for heavier ones.
You can choose whether you want to pressing action to be done rapidly or at a slower speed. Not only do these adjustments give you complete control over the ram movements, but they can also help to extend the lifespan of the machine.
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While some metalworking machines are loud and obnoxious, our collection of hydraulic presses is much quieter.
Since these machines do not have very many moving parts, the over vibrations and noise are reduced drastically. This can also tie back into the ram control.
Slower ram speeds make for quieter pressing actions. It all depends on the project at hand.
#9 - Size
Although sizes will vary depending on which particular model you choose, most hydraulic presses don&#;t take up much space.
Typically, they expand upwards as opposed to outwards. As a general rule of thumb, lighter hydraulic presses are smaller, and heavy-duty models are larger. The average size of a 20-ton hydraulic press is about 8-ft high and 2-ft wide.
On the other hand, the average 200-ton hydraulic press is approximately 10-ft high and 3-ft wide. To know the exact dimensions of the Dake hydraulic press you want for your shop, look under the specifications on the product page.
#10 - Durability
Here at Dake, we take great pride in our selection of products. As manufacturers, we build machines that can last for generations. Since our company has been in business since , we know a thing or two about building high-quality products and models.
As for hydraulic presses, we&#;ve been making these since the late s. Our models are durable enough to withstand the test of time.
Even if a part gets worn down after a while, we can easily ship out a replacement piece. Once the part is replaced, the press will work as though nothing had ever happened.
Talk to Us
If you would like to learn more about our hydraulic presses or request a custom machine, get in touch with our experts today. We will be happy to assist you.
If you are looking for more details, kindly visit Powder Compacting Press Machine.
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