Understanding the Role of 36mm Nissei Barrels in Injection Molding Machines
- Heat Tech
- Feb 26
- 3 min read
www.completeplastics.com, sales@completeplastics.com, 770-417-6983. Injection molding machines rely on precise components to deliver consistent, high-quality plastic parts. One key component is the barrel, which houses the screw that melts and injects plastic into molds. Among various barrel sizes, the 36mm Nissei barrel stands out as a versatile and widely used option across multiple Nissei machine series. This post explores the significance of the 36mm barrel, its applications in different Nissei models, and why it remains a popular choice for many molding operations.
Understanding the Role of 36mm Nissei Barrels in Injection Molding Machines
The barrel diameter in an injection molding machine directly affects the shot volume, pressure, and overall molding performance. A 36mm barrel offers a balanced size that suits a wide range of molding tasks, especially in small to mid-sized tonnage machines. It provides enough capacity for moderate shot sizes while maintaining good plasticizing efficiency and pressure control.
Understanding the Role of 36mm Nissei Barrels in Injection Molding Machines - Nissei, a respected manufacturer of injection molding machines, uses the 36mm barrel in several of its series, making it a common and reliable choice for many molders. The barrel’s length, typically around 34.65 inches for the 36mm size, ensures sufficient plastic melting and mixing before injection.
Nissei Machine Series Using 36mm Barrels
FN and FNX Series (Hybrid and Hydraulic)
The FN and FNX series are among Nissei’s most popular hydraulic and hybrid machines. These series cover a broad range of tonnages, and the 36mm barrel fits well within their mid-range injection units.
FN1000-12A (FN 80): This 80-ton machine often comes with a 36mm barrel as a standard bore size, ideal for moderate shot volumes.
FN2000-18A (FN 110): At 110 tons, this model lists the 36mm barrel as a primary option, balancing shot size and injection pressure.
FN4000-36A (FN 180): Although this model typically uses larger barrels (45mm to 56mm), some older or customized versions include 36mm barrels to meet specific molding needs.
FNX-III and FNX-IV: These modern hybrid machines, ranging from 80 to 460 tons, often use 36mm barrels for mid-range injection units, providing a good mix of shot volume and pressure control.
NEX Series (All-Electric)
Nissei’s all-electric machines focus on precision and energy efficiency. The 36mm barrel is common in this line, especially for small to mid-size tonnage machines.
NEX-V and NEX-IV Series: These models, with clamping forces from 30 to 360 tons, frequently use 36mm barrels in injection units like the 12E or 18E. The all-electric design benefits from the consistent plasticizing and injection performance of the 36mm barrel.
Other Legacy and Specialty Models
Several older or specialized Nissei machines also use the 36mm barrel, showing its versatility across different machine types.
FS Series: Older hydraulic models such as the FS160S25A or FS180S36A are known to use 36mm bore sizes.
NS Series: The NS60 series (60 tons) and similar small-tonnage machines often include 36mm barrels for high-pressure molding applications.
Vertical Machines (TNX/TWX): Nissei’s vertical insert molding machines share injection units with the FN/FNX series, making 36mm barrels a standard fit for many vertical molding tasks.
Why Choose a 36mm Barrel?
The 36mm barrel size offers several advantages that make it a preferred choice for many molders:
Versatility: Suitable for a wide range of materials and shot sizes, the 36mm barrel fits many molding applications without the need for frequent changes.
Balanced Shot Volume: It provides enough capacity for medium shot sizes, ideal for parts that require moderate amounts of plastic.
Pressure Control: The diameter supports good injection pressure, which is crucial for molding detailed or complex parts.
Compatibility: Many Nissei machines come standard or offer 36mm barrels as an option, simplifying maintenance and part replacement.
Cost-Effectiveness: Compared to larger barrels, the 36mm size often uses less material and energy, reducing operational costs.
Practical Examples of 36mm Barrel Use
Consider a molding shop producing automotive components with Nissei FNX-IV machines. These machines, equipped with 36mm barrels, can handle a variety of thermoplastics, from ABS to polypropylene, delivering consistent shot sizes for medium-sized parts like dashboard panels or trim pieces.
Another example is a medical device manufacturer using Nissei NEX-V all-electric machines. The 36mm barrels in these machines provide precise control over shot volume and temperature, essential for molding small, high-precision parts such as syringe components or housings.
Maintaining and Ordering 36mm Nissei Barrels
Proper maintenance of the barrel ensures long machine life and consistent part quality. Regular inspection for wear, corrosion, or damage is necessary. When replacement is needed, sourcing from reliable suppliers like Complete Plastics guarantees quality and fit.
Complete Plastics offers 36mm Nissei barrels with an overall length of 34.65 inches, matching OEM specifications. They provide support via their website www.completeplastics.com, email (sales@completeplastics.com), and phone (770-417-6983) for inquiries and orders.
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