Erie Press Scotch Yoke Forging Press
When you’re working at the high end of forging tonnage, the difference between a good press and the right press comes down to precision under load, consistency over time, and a drive mechanism you can trust. The Erie Press Scotch Yoke was built with exactly that in mind, and it’s been proving itself on floors like yours for generations.
Request a Quote
View Specifications
Product Overview
Engineered for Heavy-Duty Performance
Available from 500 to 12,000 tons, the Erie Press Scotch Yoke forging press is one of the most capable mechanical forging presses on the market. Whether you’re running high-volume production or tackling complex forgings that push the limits of your current equipment, this machine delivers.
The Scotch Yoke Difference
Erie’s exclusive Scotch Yoke drive is what sets this press apart from conventional eccentric or crank designs. The Scotch Yoke drive delivers uniform forging pressure throughout the stroke, which translates directly to more consistent parts and significantly better handling of off-center loads.
If you’re dealing with asymmetric parts or multi-cavity dies, that’s not a small thing. Off-center loading is where a lot of presses start to show their weaknesses. The Erie Scotch Yoke press for off-center loads can handle that stress without the deflection you’d see elsewhere.
The compact nature of the Scotch Yoke design also allows for a lower frame height, which means greater rigidity. And a stiffer, more stable press is a more accurate press.
Request A Quote
Erie’s exclusive Scotch Yoke drive is what sets this press apart from conventional eccentric or crank designs. The Scotch Yoke drive delivers uniform forging pressure throughout the stroke, which translates directly to more consistent parts and significantly better handling of off-center loads.
If you’re dealing with asymmetric parts or multi-cavity dies, that’s not a small thing. Off-center loading is where a lot of presses start to show their weaknesses. The Erie Scotch Yoke press for off-center loads can handle that stress without the deflection you’d see elsewhere.
The compact nature of the Scotch Yoke design also allows for a lower frame height, which means greater rigidity. And a stiffer, more stable press is a more accurate press.
Built for High Tonnage, Built to Last
This is a high-tonnage Scotch Yoke forging machine, and every component reflects that. The steel frame features extra-large cross-sections, and the extra-wide forged steel eccentric is engineered to maximize rigidity while keeping shaft deflection to a minimum.
A few things that stand out:
- Full-Length Adjustable Guides keep the ram stable and true throughout the forging stroke, which directly translates to tighter tolerances and more consistent part quality.
- Band-Type Brake with 3 Sections can be reversed to equalize wear, a practical design detail that extends service life and reduces maintenance headaches.
- Alloy Steel Spur Gearing simplifies both assembly and ongoing maintenance, which matters when you’re running a demanding production schedule.
- Pressure Lubrication System continuously lubricates, cools, and cleans all critical working parts, keeping everything running clean even under sustained heavy loads.
- Larger Windows make this press readily compatible with automated forging line equipment, so if you’re running or planning to run automation, the Erie Scotch Yoke fits the picture.
Request A Quote
This is a high-tonnage Scotch Yoke forging machine, and every component reflects that. The steel frame features extra-large cross-sections, and the extra-wide forged steel eccentric is engineered to maximize rigidity while keeping shaft deflection to a minimum.
A few things that stand out:
- Full-Length Adjustable Guides keep the ram stable and true throughout the forging stroke, which directly translates to tighter tolerances and more consistent part quality.
- Band-Type Brake with 3 Sections can be reversed to equalize wear, a practical design detail that extends service life and reduces maintenance headaches.
- Alloy Steel Spur Gearing simplifies both assembly and ongoing maintenance, which matters when you’re running a demanding production schedule.
- Pressure Lubrication System continuously lubricates, cools, and cleans all critical working parts, keeping everything running clean even under sustained heavy loads.
- Larger Windows make this press readily compatible with automated forging line equipment, so if you’re running or planning to run automation, the Erie Scotch Yoke fits the picture.
Technical Specifications
The straight line ram Scotch Yoke press is available from 500 to 12,000 tons.
| Capacity (Tons) | Stroke Length (in) | Strokes Per Minute | Die Seat L-R x F-B (in) | Motor HP | Weight (lbs) |
|---|---|---|---|---|---|
| 500 | 10 | 90 | 27 x 32 | 50 | 57,000 |
| 1,000 | 10 | 90 | 30 x 40 | 75 | 90,000 |
| 1,300 | 10 | 90 | 33 x 40 | 100 | 124,000 |
| 1,600 | 12 | 65 | 39 x 43 | 100 | 188,000 |
| 2,500 | 14 | 55 | 48 x 54 | 150 | 280,000 |
| 4,000 | 16 | 45 | 61 x 60 | 250 | 460,000 |
| 6,000 | 18 | 38 | 78 x 80 | 500 | 1,195,000 |
| 8,000 | 18 | 35 | 81 x 88 | 500 | 1,500,000 |
| 12,000 | 20 | 31 | 85 x 101 | 200 @ 530 | 2,750,000 |
Note: All specifications are nominal and subject to customization based on application requirements. Contact our engineering team for detailed specifications and custom configurations.
Options and Accessories
Every operation is a little different, and Erie Press presses are configurable to match yours. Available options for the Scotch Yoke drive forging press include:
Bottom Wedge Adjustment
A front-to-back moving wedge for shut height adjustment is available as an option. Presses 1,600 tons and over use a double wedge arrangement for added stability and control.
Power Wedge Adjustment
On presses 2,500 tons and larger, an air-operated impact wrench makes wedge and die height adjustment fast and easy to operate.
Custom Bolsters
Bolsters can be furnished to your specifications to match your tooling and die setup requirements.
Instrument Package
Monitors and records critical press functions including flywheel RPM, drive motor amperage, and bearing temperatures. Alarms flag hazardous conditions before they become problems.
Strain Monitoring System
Gives operators real-time visibility into what the press is doing under load, supporting process consistency and overload awareness.
Lower Knockout Time Delay
Holds the forging out of the lower die cavity for a set time, making part handling easier and more reliable during production.
Mechanical-Pneumatic Transfer
Enables automatic forging handling through the press, a key component for higher-volume automated production lines.
Conveyor Package
For fully automated presses: includes billet loading and feeding conveyors with reject chute, part discharge, and flash removal conveyors.
Why Ajax/CECO/Erie Press
Spec sheets tell part of the story. The rest is what happens after the machine is on your floor, and that’s where Ajax/CECO/Erie Press has been building its reputation for over 145 years.
Every Erie Press Scotch Yoke is backed by a dedicated project manager who stays with your project from quoting through installation. We’ll train your team, provide detailed maintenance documentation, and set up a preventative maintenance program built around your specific operation. If something comes up down the road, we’re reachable remotely and ready to help.
We build presses. We also build relationships, and we’re genuinely in this for the long haul with our customers.
Request a Quote
Spec sheets tell part of the story. The rest is what happens after the machine is on your floor, and that’s where Ajax/CECO/Erie Press has been building its reputation for over 145 years.
Every Erie Press Scotch Yoke is backed by a dedicated project manager who stays with your project from quoting through installation. We’ll train your team, provide detailed maintenance documentation, and set up a preventative maintenance program built around your specific operation. If something comes up down the road, we’re reachable remotely and ready to help.
We build presses. We also build relationships, and we’re genuinely in this for the long haul with our customers.
Frequently Asked Questions: Erie Press Scotch Yoke
What makes the Scotch Yoke drive different from other mechanical press designs?
Most mechanical forging presses use a crank or eccentric drive. The Erie Scotch Yoke drive delivers more uniform forging pressure across the stroke and handles off-center loading better than conventional designs, which means less deflection, more consistent parts, and less stress on the machine over time.
Can the Erie Press Scotch Yoke be customized for my operation?
Yes. While the press comes well-equipped as standard, there’s a solid range of options, from shut height adjustment wedges to automated conveyor packages, that can be configured to fit your line. If your requirements go beyond that, Ajax/CECO/Erie Press can custom-engineer a solution around your needs.
What kind of support can I expect after the press is installed?
A dedicated project manager stays with your project through installation, and the relationship doesn’t end there. Ajax/CECO/Erie Press provides staff training, detailed maintenance documentation, customer-specific PM programs, and ongoing remote support whenever you need it.
Erie Press Scotch Yoke Manuals & Product Documentation
Download the complete Erie Press Scotch Yoke brochure for detailed specifications, dimensional drawings, and engineering data.