
SK 2500T Servo Motor Injection Molding Machine
Sunbun, Your best high speed high precision injection molding machine.
SK series. From 140T-2800T as the lastest generation injection molding machine of SUNBUN group featuring the mechanical Central Locking Structure. Different with 99.9% injection machine among the market
With 100% clamping force and longer open stroke which can be use smaller machine make bigger products. Material saving 2%-6% than normal machine enjoy solid reputation from all the clients.
China Sunbun Sk1800 is Central Locking Techology High Speed High Precision Plastic Horizontal Injection Molding Machine.
It Enjoy 100% Clamping force Which Can With Smaller Machine Making Bigger Product.
From 140T-2800T
● 100% Clamping Force Ratio, 10%-20% Higher Than Tradtional One
● Less Fins On The Finished Products
● 2%-6% Raw Material Saved From Tradtional One
● Effective Production For Mold, Mold Board and Pull Rod
●Open Stroke 10%-20% Bigger Than Morlam One
● Less Deformation By CoolIng
Injection part
Item/type | Unit | SK2500 / C40700 | SK2800 / C70000 | ||||||
Screw type | A | B | C | D | A | B | C | D | |
Screw diameter | mm | 170 | 185 | 200 | 220 | 200 | 220 | 230 | 240 |
Screw diame-ter ratio | L/D | 24 | 22 | 20 | 19 | 24 | 22 | 21 | 20 |
Theoretical injection volume | cm³ | 20996 | 24864 | 29060 | 35162 | 36285 | 43905 | 47987 | 52251 |
Injection volume (PVC) | g | 19106 | 22626 | 26445 | 31997 | 33019 | 39954 | 43668 | 47548 |
Maximum rate for inject-ion to air | cm³/s | 1443 | 1709 | 1997 | 2416 | 1816 | 2197 | 2042 | 2615 |
Injection pressure | MPa | 194 | 164 | 144 | 116 | 193 | 160 | 146 | 134 |
Injection stroke | mm | 925 | 1155 | ||||||
Maximum injection speed | mm/s | 63.5 | 57.8 | ||||||
Maximal Rotational Speed of Screw | r/min | 48 | 54 |
Clamping part
Item/type | Unit | SK2500 / C40700 | SK2800 / C70000 | ||||
Clamp Tonnage | KN | 25000 | 28000 | ||||
Toggle stroke | mm | 2250 | 2400 | ||||
Distance between tie bars | mm×mm | 1920x1720 | 2110x1910 | ||||
Maximum mould height | mm | 2000 | 2100 | ||||
Minimum mould height | mm | 850 | 950 | ||||
Ejection stroke | mm | 500 | 550 | ||||
Ejector force forward | KN | 425 | 425 | ||||
Ejector force backard | KN | 334 | 334 | ||||
Amount of die thimble | Pcs | 1+28 | 1+28 |
Others
Item/type | Unit | SK2500 / C40700 | SK2800 / C70000 | ||||
System pressure | MPa | 16 | 16 | ||||
Motor power | KW | 47+47+47+47 | 77+47+47+47+47 | ||||
Heater power | KW | 165.3 | 225.9 | ||||
Quantity of temperature-control zones | 1+6 | 1+6 | |||||
Bucket capacity | kg | 400 | 400 | ||||
Oil tank capacity | L | 2700 | 3000 | ||||
Boundary dimension(L×W×H) | m | 18.5 x 4.15 x 5.1 | 20.5x4.45x5.6 | ||||
Machine weight | Ton | 170 | 230 | ||||
Side dimension of the molding board | ![]() | ![]() |
INJECTION SYSTEM
- The enhanced double-cylinder dual-extruding enjection structure will produce a lower back pressure in oil return during ejection. have a quicker injection speed and longer service life
- The dual linear-guide , double displacement balanced stand can improve machine barrel accuracy
- Precise screw design will dramatically improve the injection accuracy and effectively reduce the defective rate. (38/42 Crmoal)
- The optioncal pneumatic nozzle imported with orginal package has a flexible switch device and reliable seal
- The cylinder with thicker wall and a high power heater can ensure a high plasticizing efficiency
HYDRAULIC SYSTEM
- With international High Speed Storage motor and Hydraulic Components ensure fast , effcient and long life operation
- Modualr design for High-Response oil circult and hydraulic valve plate Which have a large oil circule and free of damp effectively reduce pressure loss , speed up system response ability
- Original germany oil pipe and seals avoid oil leak.
ELECTRONIC CONTROL
- The whole electrionic control system is design for full electric and high speed injection molding machine
- Apply Up-To-Date System, New hardware design, intelligent interactive interface , A CPU for fast arithmetic speed
- Using EtherCAT/CAN All-Date Communication technology Show clear iprovement in all technical indexes. Actsmore accurately in pressure and flow rate control
- Reserves an internet management systen and energy consumpition display which enables advantanced control modes.
CLAMPING SYSTEM
- SK Series adopts outwards toggle and excellent design ideal . with quite large bar space between four column. Which is required by different industries.
- Super large open stroke is 10%-20% bigger than normal one. More suitable for deep cavity product
- QT500-7 Mold board is much strong for long time service .
- Adopting gear-adjusting ring with high-precision, large-scale transfer and compact structure to facilitate customer adjusting the mold thickness