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SK-1200U 1200Ton Two-Platen Injection Molding Machine
SK-U Series Two Platen Injection Molding Machine

SK-1200U 1200Ton Two-Platen Injection Molding Machine

Model No.: SK-1200U

Application: Making Virous Plastic Product
Accepted Delivery Terms: FOB,CFR,CIF,EXW,CIP;
Payment accepts: T/T, L/C, Western Union, MoneyGram
Accepted Payment Currency: USD, USTD, CNY, EUR, AUD, CAD, CHF, DKK, EUR, GBP, HKD, JPY, NOK, NZD, SEK, SGD, AED, IDR, NGN, BRL, MXN, MYR, PHP, BRL, ZAR etc.

  • Suitable Material PP, PS, PE, ABS
  • Clamping force (KN) 12000 KN
  • Theoretical Shot Volume(cm³) 5224-7746 cm³
  • Theoretical Injection weight (PET) 5046-7049 g
  • Tie-bar Distance 1300×1100 mm
  • Open stroke(mm) 1900/1200 mm
  • Voltage 3 Phases 380V / 440V(Optional) / 220V(optional), 50HZ/60HZ

Product Introduction

The Large-Scale Solution: Unmatched Efficiency and Precision for Heavy-Duty Manufacturing

SK-1200U 1200Ton Two-Platen Injection Molding Machine: Your Cost-Effective Gateway to Reliable Medium-to-Large Heavy-Duty Molding
As the entry-level model of the SK-U two-platen series, the SUCCESSOR SK-1200U is purpose-built for small and medium-sized manufacturers stepping into large-component production, delivering an optimal balance of precision, efficiency, and investment value. This machine is tailored for businesses that need consistent performance for mid-sized complex parts, without compromising on production stability or part quality in long-run operations. Its core performance is built on a heavy-duty high-rigidity clamping unit, paired with an L-shaped precision guidance system mounted on a reinforced integral frame, which delivers steady platen movement with a guaranteed ±0.05mm positioning accuracy. This level of precision ensures consistent dimensional conformity for every molded part, even for intricate components with tight tolerance requirements, batch after batch.
To safeguard your mold investment and reduce long-term operating costs, the SK-1200U is equipped with a shock-free synchronous braking system with a built-in buffer structure. This design enables fast and smooth clamping without hard impact, effectively extending the service life of high-value molds and minimizing unplanned maintenance downtime. For production flexibility, the machine features an independent high-pressure cylinder design, which supports controlled slow high-pressure mold opening and simple tie-bar extraction, making it fully adaptable to workshops with low-headroom limitations and diverse production layout needs. The specially treated uniform-stress guide posts deliver over 99% force uniformity across the platen, effectively preventing eccentric load during operation, reducing mechanical wear, and ensuring long-term reliable performance of the whole machine. The reinforced platen structure enhances mold closing stability, while the optimized extended stroke easily accommodates deep-cavity molds, offering a far more cost-effective solution than conventional three-platen machines of the same specification.
To boost production efficiency, the SK-1200U integrates an instantaneous response system paired with high-response dual proportional valves, which delivers rapid and accurate action control, effectively shortening cycle times and increasing single-machine output. The streamlined mechanical design simplifies daily maintenance, and the intelligent automated setup system enables fast and repeatable mold changeovers, minimizing non-productive downtime during production switching. Ideal for manufacturing automotive structural parts, medium-sized industrial equipment housings, and heavy-duty packaging products, the SK-1200U perfectly balances power, precision, and cost efficiency, making it the ideal entry-level workhorse for your large-component molding production.

Core Engineering Highlights

Exceptional Precision in Mold Opening Position
01

Exceptional Precision in Mold Opening Position

Achieves a repeatable mold opening accuracy of ±0.2mm—a fivefold improvement over standard three-plate machines. (Verified by internal 1200-ton testing).
Ultra-Sensitive Mold Protection
02

Ultra-Sensitive Mold Protection

SK-U series machines’ intelligent deceleration control provides unparalleled sensitivity, achieving the "A4 paper rebound" standard. It can stop on the slightest obstruction, ensuring your valuable molds are protected with maximum reliability
High-Speed Performance, Lower Cycle Times
03

High-Speed Performance, Lower Cycle Times

Experience significantly faster dry cycles. Our optimized system delivers rapid mold opening and clamping, translating directly into enhanced productivity and greater output. (Verified by 1200-ton internal testing).

Partial product

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Machine Specifications

MODEL

SK-1200U

Description

Item

Unit

A

B

C

INJECTION UNIT

Screw Diameter

MM

110

120

130

Screw L/D Ratio

L/D

24

22

20.3

Shot Size (Theoretical)

CM³

5224

6600

7746

Injection Weight (PS)

G

5046

6006

7049

Injection Rate

G/S

813

968

1136

Plasticizing Capacity

G/S

121

140

161

Injection Pressure

MPA

205

172

147

Screw Speed

RPM

0 - 110

CLAMPING UNIT

Clamp Tonnage

KN

12000

Space Between Tie Bars

MM

1300×1100

Opening Stroke

MM

1900/1200

Max. Mold Height

MM

1300

Min. Mold Height

MM

600

Max.daylight

MM

2500

Ejector Stroke

MM

350

Ejector Tonnage

KN

280

Ejector Number

PCS

25

OTHERS

Max.・Pump Pressure

MPA

17.5/21

Pump Motor Power

KW

48 + 48 + 48 + 13

Heater Power

KW

74.35

Machine Dimension (LxWxH)

M

11.5×3.7×3.6

Machine Weight

T

58

Oil Tank Capacity

L

1500

Certifications

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Certifications (10)
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Company Exhibition

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Certifications (3)

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Packaging & Shipping

Two-Platen Injection Molding Machine (1)
Two-Platen Injection Molding Machine (2)
Two-Platen Injection Molding Machine (3)
Two-Platen Injection Molding Machine (4)
Two-Platen Injection Molding Machine (5)
Two-Platen Injection Molding Machine a

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