Project
Feature
1, Pre-stressed tie rods, rigid structure, higher profile dimension precision, higher qulified product rate, less impact to the die mold, die mold use life is longer.
2, Forged main cylinder, main ram is supported by tin bronze bushing that installed with liquid nitrogen cooling; Die slide seat and die holder seat adopt high temperature resist, self-lubricant high-quality graphite copper plate, smoother running and longer service life.
3, Front and rear platen, cross head, tie rods, main cylinder, main ram all are tested by ultrasonic flaw detection, warranty 2 years. Whole machine warranty 1 year.
4, Germany original Rexroth main pump, original Rexroth valves, precise flow/extrusion speed control; smoother running and less noise, less down time.
5, Tokyo Keiki/China top brand vane pump.
6, China famous brand 6 pole main motor, few down time and very long use life.
7, Siemens/Mitsubishi PLC; Autonics thermal control sensor; WIKA pressure sensor; more stalbe and precise extrusion parameters control, higher aluminum extrusion qualified rate.
8, Dead cycle no more than 17 seconds, high production efficiency.
9, Long stroke, fixed dummy block.
10, Trial running before delivery.
11, After sales service: shipping support; on site installation and commissioning; operation, production and maintenance training.
12, Servo motor optional, energy saving 10-30%
13, Constant speed function optional
Technical parameters
| Machine capacity | 1600 UST/1450MT |
|---|---|
| Work pressure | 22 Mpa |
| Extrusion force | 1445 MT |
| Extrusion billet size | ø152 mm (6”)×850 mm |
| Container specification | Ø157×870 mm |
| Die specification | Ø350×350 mm |
| Dimensions | L 12000 mm * W 4000 mm * H 4000 mm |
| Gross weight | 87 Ton |
| Hydraulic oil tank volume | 5.63 m³ |
| Profile exit in the front platen | Max circle ø220 L 260mm |
| Total power capacity | 274KW |
| Hydraulic oil | viscosity #68 anti-wear 5067kg |
| Cooling water | 30m 3 /h |
| Main cylinder work pressure | 21~24 Mpa |
| Main ram diameter | Ø870 mm |
| Main ram effective stroke | 1670 mm |
| Main ram extrusion force | 1307 MT |
| Side cylinder work pressure | 22 Mpa |
| Side cylinder diameter | Ø200 mm |
| Side cylinder effective stroke | 1670 mm |
| Side cylinder extrusion force (2 pcs) | 138 MT |
| Container cylinder diameter | Ø180 mm |
| Container cylinder effective stroke | 400 mm |
| Container cylinder sealing force (4 pcs) | Work pressure, 15Mpa :153MT |
| Butt shear cylinder diameter | Ø160 mm |
| Butt shear cylinder effective stroke | 600 mm |
| Butt shear cylinder shear force / work pressure | 14Mpa / 28 MT |
| Die change cylinder diameter | Ø160 mm |
| Die change cylinder effective stroke | 970 mm |
| Die change cylinder maximum push force | 14Mpa/28 MT |
| Extrusion speed | 0～16 mm/s |
| Dead cycle | ≤ 17 sec |
| Main ram fast advance | 380 mm/S |
| Main ram fast backward | 380 mm/s |
| Container open | 182 mm/s |
| Container close | 200 mm/s |
| Butt shear down | 500 mm/s |
| Butt shear up | 560 mm/s |
Quality control
Main cylinder and main ram, front platen, rear platen, cross head, tie rods all are tested by ultrasonic flaw detection.
Tin bronze main ram supporing wearing bushing installed by liquid nitrogen cooling installation method.
Aluminum extrusion press trial running before delivery to make sure all parts and all actions are without problems.
Installation and commissioning
On site installation and commissioning
We shall dispatch our most experienced technicians to perform and guide the on site installation and commissioning in our client's plant; provide operation, production and maintenance training.
Warranty
Whole machine 1 year. Main components 2 years. After warranty time, we provide life time maintenance service with quick response and reasonable parts price.
Specifications
| Model/ Capacity | Type | Aluminum Billet Size (mm) | Main Ram Diameter (mm) | Exist Size (mm) | Regular die size (mm) | Total Weight (Tons) |
|---|---|---|---|---|---|---|
| 640T/ 700UST | Long Stroke | Φ90x550 | 600 | Φ135 | Φ200x200 | 29 |
| 700T/ 780UST | Long Stroke | Φ100x580 | 620 | Φ135x150 | Φ220x220 | 33.5 |
| 800T/ 880UST | Long Stroke | Φ110x620 | 660 | Φ150x180 | Φ240x240 | 44 |
| 1000T/ 1100UST | Long Stroke | Φ120x700 Φ127x700 | 750 | Φ160x200 | Φ280x280 | 57 |
| 1250T/ 1400UST | Long Stroke | Φ135x750 | 800 | Φ190x230 | Φ320x320 | 72 |
| 1250T/ 1400UST | Short Stroke | Φ135x800 | 800 | Φ190x230 | Φ320x320 | 74 |
| 1450T/ 1600UST | Long Stroke | Φ152x850 | 870 | Φ220x260 | Φ350x350 | 92 |
| 1450T/ 1600UST | Short Stroke | Φ152x900 | 870 | Φ220x260 | Φ350x350 | 94 |
| 1650T/ 1800UST | Long Stroke | Φ152x900 Φ178x900 | 900 | Φ220x260 | Φ350x350 | 98 |
| 1850T/ 2000UST | Short Stroke | Φ178x1000 | 950 | Φ260x290 | Φ400x400 | 128 |
| 2200T/ 2500UST | Short Stroke | Φ203x1100 | 1020 | Φ280x320 | Φ450x450 | 168 |
| 2500T/ 2750UST | Short Stroke | Φ228x1200 | 1080 | Φ300x350 | Φ500x500 | 210 |
| 2750T/ 3000UST | Short Stroke | Φ254x1300 | 1120 | Φ350x420 | Φ550x550 | 250 |
| 3600T/ 4000UST | Short Stroke | Φ280x1300 | 1280 | Φ380x460 | Φ600x600 | 300 |
| 4000T/ 4400UST | Short Stroke | Φ320x1400 | 1350 | Φ430x500 | Φ650x650 | 350 |
| 5000T/ 5500UST | Short Stroke | Φ355x1500 | 1500 | Φ460x550 | Φ700x700 | 450 |
| 6800T/ 7500UST | Short Stroke | Φ432x1600 | 1680 | Φ500x650 | Φ800x800 | 650 |
| 8000T/ 9000UST | Short Stroke | Φ457x1700 | 1780 | Φ600x750 | Φ1000x1000 | 850 |
How to choose a better extrusion press
The elements that affect the choose of aluminum extrusion machine type and capacity:
- Aluminum alloy type
- Aluminum extrusion shape and size
- Extrusion ratio
- Output/yield
- Budget
Cast iron main cylinder
After years working, easy to crack
Forged steel main cylinder
Solider, longer service life
None pre-stressed tie rods
The elastic deformation is not good for profile quality and die mold use life
Pre-stressed tie rods
Significantly reduces the elastic deformation when extruding, good for profile dimension precision and die mold life is longer
Front container sealing cylinders
Cylinder seals near the hot container, use life is short
Back container sealing cylinders
Cylinder seals are far away from the container, longer use life
Nodular cast iron main cylinder
bushing
Lower cost, fragile than tin bronze
Tin bronze main cylinder
bushing
Better for long time precise wearing, cost is higher
Three-phase asynchronous motor
Lower cost, but higher energy consumption; less maintenance requirment
Servo motor
Energy saving 10-30%; but higher cost; work with servo driver, more maintencance required
Section speed function
The speeds of each stage of action are set separately
Constant speed function
The extrusion speed is constant
Loose dummy block
This type of dummy block mainly used in 3.5-5 inches long stroke aluminum extrusion press to save dummy block cost. Our design can detect the dummy missing or misdirection situation to avoid damage or down time caused
Fixed dummy block
This type of dummy block mainly used in 6 inches or bigger short stroke aluminum extrusion press to save labor cost and for fully automatic operation
Seamless oil tube
This is the conventional oil tube need welding; perhaps leak oil after years working
Stainless steel seamless oil tube
No need welding and no oil leak
Aluminum billet front loading/short stroke
Better billet centering positioning which is more suitable for very highly precise tube extrusion. This loading method need very perfect shape billet cut by hot saw or pre-cut before heating. Most apply in big extrusion press more than 5000T
Aluminum billet back loading/short stroke
Can apply in most extrusion situation. Billet can be cut by hot shear, easy to load inside the container and not easy to get scratched by container mouth edge
Long stroke aluminum extrusion press
Short stroke aluminum extrusion press
- The extrusion stroke is 2 times of the aluminum billet length. Therefore, the extrusion stroke is 2 times of the short-stroke aluminum extrusion press. Long stroke usually not applied in aluminum extrusion machine that bigger than 7 inches. Most applied in 3.5-5 inch press.
- Its advantage is easy to operate and maintain.
- The dead cycle time is shorter and the production efficiency is higher.
- The billet feeding system is controlled by servo motor, the billet loading action is faster, more precise and more reliable.
- The shortening of the tie rods/column and the main cylinder length make the structure more rigid, reduces the elastic deformation, improves the accuracy and stability of the machine. Can use longer billet than long stroke extrusion press, production efficiency is higher.
- The amount of hydraulic oil required by the machine has been reduced, resulting in lower usage costs and more environmentally friendly.
Direct aluminum extrusion press
Indirect aluminum extrusion press
Most aluminum extrusion are produced by direct extrusion press.
Indirect extrusion press mainly extrude seamless aluminum pipe or hard aluminum alloy that not easily extruded by direct extrusion press.
Contact us
Phone/whatsapp:0086-13535359290
Email: kelvmachine@sina.com
Please tell us what aluminum extrusion product you plan to produce, what is the monthly/annual yield… the more details you provide, the more precise our technical proposal will be. Please feel free to contact us.
