Accumulator blow molding machine
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Accumulator blow molding machine for Plastic Bench Seat Stadium Chairs Spectator Seats Faroe Chair Shell

suitable for medium size barrel, motorbike oil tank, tool-bag, auto plastic parts,3-5 layer pesticide. plastic material including PE、PP、PS、ABS etc.

plastic container in volume 5-20 L.


  • HMI Touch Screen, Incorporating with PLC system (Optional Siemens/B&R Control) for easy maintenance.
  • Blowing Unit/ Die Head movement for changing mold easily, as option.
  • Built with safety devices to provide maximum protection for the machine operator.
  • High plasticizing capacity extrusion screw is designed to handle material variations.
  • Plasticizing screw and barrel is precision machined from special nitrogen treated steel.
  • Water cooling technology controls feed zone temperature.
  • Chiller circulated hydraulically controlled blow-pin.
  • When requiring both functions in a single machine, purchase the machine for PVC application and order the additional parts (screw and die head ) for conversion to PE application.



urea tank

Full-automatic urea tank production line

Automotive Ducts – Blow molded plastic parts for automotive and transportation vehicles can be custom made to a manufacturer’s specifications. HVAC ducts can be custom made and include headliner, IP, floor, seating, console, and SWD ducts.

Blow Molding Traffic Safety Products

Traffic Safety Products – These plastic products are typically hollow and created using the extrusion method for cones, delineators, barricades, and drums. Each of these traffic safety products help to redirect traffic or keep traffic from entering into a different lane.

Blow Molded Stadium Seating Manufacturing


Stadium Seating and Chairs – Plastic seats are the perfect comfortable seating for viewers in stadiums, auditoriums, and for stand-alone seating. Blow molded manufacturing for stadium seating are durable.

Containers and Tanks Blow Molding Manufacturing

Containers, Trays, Reservoirs, and Tanks – Each of these products are stand-alone designs that can be mass-produced using a specific design or by working with our engineers on a design.

Coolers – The hard plastic coolers are available on retail store shelves and in equipment use. Coolers can be custom made or with dimensions produced by current manufacturer specifications. Coolers can be made according to HDPE standards.

Fan Housings – The housing that surrounds a fan is used for standard retail fans and industrial supply fans and other air mover products. The housing servers to protect the fan motor. With a hard plastic housing, fans are durable and quality made.

Floats, Stands, Panels, and Doors – Each of these products is created using extrusion blow molding. Floats can be used in the marine industry to support floating docks, airplanes, and more.

Toys and Sporting Blow Molding Manufacturing

Toys and Sporting Goods – Hard plastic products are used for toys and sporting goods, including tricycles and wheels, and other quality made items that are created for furniture, play spaces, and more.

Watering Can Blow Molded Products

Watering Cans and Household Products – Created for all types of products and industries, specifications, and colors, blow molding is used for these products.

Plastic Blow Molded Wheels

Wheels – Plastic wheels are used on a variety of items. These can include wheelbarrows, trike bikes, wagons, and more. The hard plastic wheels are durable and quality made.

Blow Molding Carrying Cases

Carrying Cases – Cases are produced to house equipment, including tools, medical equipment, scientific, and other industrial equipment. Carrying cases at Western Case include in-stock, semi-custom, and custom cases produced to the customer’s specifications.

Extrusion blow molding meets a customer’s quality expectations throughout the process. Western Case has many customers who want an approach where they only have to go to one place. Our one-stop manufacturing includes production, assembly, and packaging.

Automotive spoilers, duct work and reservoirs
Swing sets, slides, bicycles
Medical parts
Trash cans
Ornamental packaging
Water coolers and filtration containers
Industrial containers
Double wall parts
In-Mold Carpet, Vinyl and Component Insertion

Features & Application

Accumulator blow molding machine for Plastic Bench Seat Stadium Chairs Spectator Seats Faroe Chair Shell

large-volume, high-capacity products (like industrial hollow containers), the best type of extrusion blow molder will often be the accumulator head type.

This SPB-20LS extrusion blow molding machine is available for any botlte or drum between 30- 50 Litres.

why you take this blow molding machine with accumulator die head?

If it is a large-sized and high-capacity product, you must choose an accumulative head blow molding machine, because such a product takes a long cycle and the material will stay in the screw for a long time. At the same time, this is also to meet the raw material demand of the product.


Features for this accumulator blow molding machine SPB-20LS:

  • Single Station
  • Single/Double/Triple/Q.12 Head
  • Horizontal Operated Clamping System
  • Production Volume:2ml~20L
  • Multi layers: Co-Extrusion 1-6 Layers
  • Multi cavities: 1~12 cavities
  • Specialize for the PE/PP/PETG/PVC/Nylon/Co-Extrusion material
  • Special function: View Stripe
  • Clamping system: Toggle/3 Tie Bar/4 Tie Bar
  • Driven Model: Hybrid servo motor drive system/ High performance hydraulic power saving system/Close loop proportional valve
  • Support Parison controller/Auto Deflashing/Auto Recycling/Auto material feeder/Remote trouble shooting funciton/IML(in mold labeling)



  • Clamp sizes / quantity to match all requirements
  • Easily configured for monolayer and multi-layer applications
  • Single or multi parison
  • Efficient electric drive(s) on extrusion system
  • Low profile for ease of operator access
  • Part removal and trimming matched to the application
  • In-mold labeling and view stripe capable
  • Lowest investment cost for high-speed applications
  • Extreme bottle quality consistency


Large storage Blow Molding Machine (blowing machine) can produce 20-120L containers, with Human-machine interface; easy operation system and steady as well as high-speed color change; Optional 30 points or 100 points parison wall thickness controller. Storage can reserve 4-8Kg plastic material; meanwhile the parison can press out instantly, equality thickness, optional fix manipulator.

Application: Large storage Blow Molding Machine, plastic barrel blow molding machine, plastic seat blow modling machine
Screw Diameter MM 45 50 65 70
Screw L/D Ratio L/D 22:1 22:1 24:1 26:1
Extrusion motor KW 7.5 11 22 30
Oil pressure motor KW 5.5 5.5 11 15
Screw rotate speed R.P.M 10-75 10-75 10-75 10-75
Screw heating zone Parts 6 6 6 6
Heating power KW 12 12.6 18 20
Parison motor option KW
Extruding Capacity HDPE kg/h Approx.30 Approx.35 Approx.70-75 Approx.85-90
Mold Center Distance mm 50/60/85/100/120 45/50/60/85/100/120 60/80/90/120/130 60/80/120/130/150/180
platen distance mm 110-330 110-330 180-450 180-550
mold movement stroke mm 310 310 380 420
Length range of mould mm 50-250 50-250 100-320 150-380
Width range of mould mm 60-260 60-260 100-350 150-400
Thickness range of mould mm 110-150 110-150 150-180 180-230
Dry Circle time s 3.6 3.6 3.7 3.7
Mold-locked pressure Ton 3 3 5 7
Oil tank Volume L 150 150 150 180
Air Pressure kg/cm2 6-8 6-8 6-8 6-8
Air Volume m3/min 0.4 0.4 0.6 0.8
Cooling water pressure mpa 0.3-0.5 0.3-0.5 0.3-0.5 0.5-0.7
Cooling water consumption L/min 30 30 50 60
Min./Max. diameter of product mm 10-100 10-100 30-200 40-300
Weight of product g 0.5-20 0.5-20 20-150 50-250
Volume of product L 0.01-1 0.01-1 0.05-2 0.1-5
Total power consumption kw 25.5 29 54 65
Average power consumption kw Approx.10-12 Approx.11-13 Approx.21-30 Approx.25-38
Net weight of machine ton 2.95 3 5.5 7
Gross weight of Machine ton 3.15 3.2 5.7 7.2
Machine dimension (L*W*H) m3 2.26*1.66*2.24 2.26*1.66*2.24 3.2*2.1*2.5 3.7*2.3*2.7