One Step Blow Molding Machine EPY250-V4-B: Double Row ISBM Technology for Massive Output
The EPY250-V4-B is not just a standard machine with more cavities; it is re-engineered with a high-torque 67.7KW servo system and a massive Theoretical Injection Capacity of 680g to support the simultaneous molding of up to 28 cavities. With a stable 300KN Injection Clamping Force, it ensures that every single preform in the dual-row matrix is molded with precision density, eliminating the “short shot” issues common in underpowered competitors.
One Step Blow Molding Machine EPY250-V4-B: Double Row ISBM Technology for Massive Output
High-Cavity Solution (Up to 28 Cavities) for Pharma & Hotel Amenities
Overview: Doubling Productivity with EPY250-V4-B
In the high-volume manufacturing of small containers (10ml - 200ml), standard single-row machines often hit a capacity ceiling. As a mechanical engineer with 20 years in the field, I present the EPY250-V4-B, a specialized One Step Blow Molding Machine featuring a revolutionary "Double Row" layout. This machine is designed to produce twice the volume in the same footprint, making it the ultimate tool for pharmaceutical vials, hotel amenity bottles, and cosmetic samplers.
The EPY250-V4-B is not just a standard machine with more cavities; it is re-engineered with a high-torque 67.7KW servo system and a massive Theoretical Injection Capacity of 680g to support the simultaneous molding of up to 28 cavities. With a stable 300KN Injection Clamping Force, it ensures that every single preform in the dual-row matrix is molded with precision density, eliminating the "short shot" issues common in underpowered competitors.
This ISBM Machine integrates 15KW of Nano-infrared heating power to ensure uniform temperature across the wider preform array. For manufacturers looking to dominate the small-bottle market with the lowest cost-per-unit, the EPY250-V4-B is the undisputed industry leader.

Figure 1: The High-Output EPY250-V4-B (Twin Row Configuration)
Core Technology Speed Read (Double Row Advantage)
- âś” Double Row Architecture: Capable of running molds with cavities arranged in two rows (e.g., 2x14 = 28 cavities), doubling output per cycle.
- âś” Massive Shot Size (680g): Increased plasticizing capacity to feed high-cavity molds without starvation.
- âś” 300KN Clamping Force: Heavy-duty clamping ensures zero flash even when running max cavitation (28 cavities).
- âś” Efficiency Density: Produces the output of two standard machines while occupying the floor space of only one.
Technical Specifications & Datasheet
High-cavity production requires robust specs. Below is the engineering data for the EPY250-V4-B, confirming its capacity for mass manufacturing.
01. Component & System Standards
| Servo System | Using 3 sets of servo pump systems |
| Servo Motor Power | 67.7KW (Inovance / WEICHI) |
| Control System | Inovance / MIRLE PLC |
| Turntable Drive | Japan Yaskawa Servo or WEICHI Servo + Taiwan TSUNTIEN Reducer |
| High Pressure Valve | Parker (USA) |
| Hydraulic Control Valve | YUKEN (Taiwan) |
| Heating System | Nano-far-infrared energy-saving heating ring (15KW) |
| Clamping Structure | Hydraulic cylinder or Dual Servo Motor with High-Pressure Compensation |
| Total Machine Power | 82.7KW |

02. Machine Kinematics & Dimensions (Double Row)
| Screw Diameter | 60mm (Optional) |
| Theoretical Injection Capacity | 680g |
| Injection Clamping Force | 300KN |
| Blowing Clamping Force | 250KN (Single Side) |
| Upper / Lower Mold Stroke | 600mm / 210mm |
| Temp. Regulating Core/Barrel Stroke | 250mm / 250mm |
| Take-out Stroke | 200mm |
| Dimensions (L*W*H) | 5.2m * 2.5m * 3.8m |
| Weight | 16 Tons |
03. Performance Specification Matrix
| Item | Unit | Spec A | Spec B | Spec C (Std) |
|---|---|---|---|---|
| Screw Diameter | MM | 50 | 55 | 60 |
| Theoretical Injection Volume | CMÂł | 315 | 442 | 480 |
| Screw Rotational Speed | r/min | 270 | 180 | 150-220 |
| Blowing Pressure | Mpa | 2.0 - 3.5 | ||
04. High-Cavity Production Capacity (Double Row)
| Cavities | 8 | 10 | 12 | 14 | 16 | 20 | 24 | 28 |
|---|---|---|---|---|---|---|---|---|
| Max Bottle Dia (mm) | 85 | 85 | 79 | 66 | 54 | 45 | 37 | 25 |
| Max Height (mm) | 260 (Standard) | |||||||
| Max Neck Dia (mm) | 58 | 56 | 48 | 38 | 32 | 26 | 24 | 15 |
| Max Volume (ml) | 1000 | 900 | 800 | 600 | 400 | 250 | 100 | 50 |
4-Station "Double Row" Technology
The EPY250-V4-B maximizes efficiency by processing two rows of bottles simultaneously in a single cycle, effectively doubling the output compared to single-row machines.
1. Injection
Double row injection. Molten PET is injected into up to 28 cavities. 300KN clamping ensures precision.
2. Conditioning
CRITICAL: Temperature conditioning for all cavities to ensure uniform wall thickness across both rows.
3. Stretch Blow
Simultaneous stretching and blowing of the double-row matrix. High consistency is key.
4. Ejection
Mass ejection of finished bottles, ready for automated packing lines.

Process Audit: One-Step (ISBM) vs. Two-Step
| Feature | Ever-power EPY250-V4-B (ISBM) | Two-Step Process |
|---|---|---|
| Productivity / Footprint | Extremely High (Double Row) | Moderate (Needs large space) |
| Bottle Aesthetics | Flawless, Scuff-Free | Scratches from preform tumbling |
| Energy Efficiency | High (Utilizes injection heat) | Low (Requires reheating cold preforms) |
| Hygienic Grade | Medical / Pharma Ready (Hands-free) | Standard Industrial |
| Neck Precision | Exact Tolerance (Molded) | Variable (Distortion risk) |
Industry Applications
Pharmaceuticals
Perfect for 10ml-50ml eye drop vials and medicine bottles. The 28-cavity capability ensures you meet massive market demand efficiently with One Step Injection Blow Molding.
Hotel Amenities
Ideal for 30ml-50ml shampoo and lotion bottles. High output keeps unit costs low, essential for the competitive hospitality supply market.
Cosmetic Samplers
Produces small, high-quality sample bottles. The 300KN clamping force ensures even tiny bottles have perfect definition and clarity.

[Saudi Arabia] Extreme Heat Hydraulic Performance Study
In high-temperature environments like the Middle East, maintaining hydraulic stability is key. The EPY250-V4-B features an Oversized Oil Cooling System (requiring 0.3-0.4 Mpa water pressure) and Servo-Driven Pumps that generate 40% less heat. This ensures the 300KN clamping force remains precise even at 45°C ambient temperatures.
[Germany] Energy Efficiency & EuP Compliance
Our servo systems operate on a "Power-on-Demand" basis. Energy is only consumed when the machine is moving. This results in significant power savings compared to constant-pump systems, aligning with strict EU energy efficiency directives.
Competitor Benchmarking
Compared to standard single-row Japanese machines, the EPY250-V4-B offers:
- Double Output: Twin-row design doubles capacity without doubling machine size.
- Open System: Uses Inovance PLC (easy maintenance) vs Proprietary Closed Systems.
- ROI: 10-14 Months vs 36+ Months for imported machinery.
Investment ROI Analysis (Double Row Effect)
Scenario: Manufacturing 30ml Hotel Shampoo Bottles (10 Million Units/Year)
Outsourced Cost
$600,000
($0.06/unit)
In-House Cost
$250,000
($0.025/unit Material+Power)
Annual Savings
$350,000
ROI < 1 Year
Engineer's FAQ
1. How many 50ml bottles can it produce at once?
For a standard 50ml bottle (approx 30mm diameter), the EPY250-V4-B can run 24 to 28 cavities in a double-row setup.
2. Can it process Recycled PET (rPET)?
Yes, we offer specialized bimetallic screws and drying systems optimized for rPET processing.
3. Does the double row affect quality?
No. The machine uses a 300KN clamping force and precision conditioning station to ensure every cavity in both rows is identical.
4. What is the cycle time?
For small bottles, cycle times are typically 10-14 seconds, leading to immense hourly output with 28 cavities.
5. Is installation included?
We provide comprehensive onsite installation, commissioning, and staff training services worldwide.
6. What is the max bottle diameter?
In an 8-cavity configuration, it can handle up to 85mm. At 28 cavities, the max diameter is 25mm.
Global Field Notes: Case Studies
🇺🇸 USA (New Jersey)Pharma Vials. Using 24-cavity mold for eye drops. Result: Doubled capacity without buying a second machine.
🇲🇽 Mexico (Guadalajara)Miniatures. 50ml alcohol bottles. Result: High speed production with glass-like clarity.
🇫🇷 France (Lyon)Cosmetics. Sample jars. Result: Precise neck finish on 10ml samples using double row tech.
🇹🇷 Turkey (Istanbul)Hotel Amenities. 30ml Shampoo bottles. Result: Lowest unit cost in the market due to 28-cavity output.
🇻🇳 Vietnam (Hanoi)Travel Kits. PETG travel bottles. Result: Stable continuous running 24/7.
🇷🇺 Russia (Moscow)Pharma. Result: Reliable performance and easy mold changeovers for different small vial sizes.
Installation Gallery






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Additional information
| Editor | Miya |
|---|
Product Quick Detail:
- Standard and non-standard available
- With high quality and competitive price
- Prompt delivery
- Packing as per customer’s demand.
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port






