ZBW250G / ZBW-250 Oil-Free Dry Vacuum Pump (250 m³/h – 300 m³/h | 5.5–6.6 kW)

The GOFLEX ZBW250G (ZBW-250) is an industrial-duty 100% oil-free single-suction dry vacuum pump engineered for large-scale operations requiring absolute cleanliness and zero contamination risk. It delivers a displacement of 250 m³/h at 50Hz and 300 m³/h at 60Hz driven by a 5.5 kW to 6.6 kW three-phase motor (960 r/min), while maintaining a reliable -80 kPa rated exhaust pressure. Designed with a wide G 2 1/2" connection port, rugged spray-treated housing, noise level of ≤81 dB(A), and a net machine weight of 260 kg (1256 × 680 × 545 mm), the ZBW250G provides exceptional performance for high-capacity food packaging, GMP pharmaceutical drying, electronic component assembly, and industrial vacuum distillation. Backed by a 1-year warranty and comprehensive OEM/ODM support.
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Specification

ZBW Series Single-Suction Oil-Free Dry Vacuum Pump Technical Specifications

ModelFlow Rate
(m³/h)
Rated Pressure
(kPa)
Motor Power
(kW)
Speed
(r/min)
Noise
dB(A)
Port Size
(Outer Dia.)
Net / Gross Wt.
(kg)
Machine Size
(L × W × H mm)
ZBW40E40 m³/h-80 kPa1.5 kW1420 r/min72G 3/4"60 kg650 × 353 × 328
ZBW60E60 m³/h3 kW72G 1"86 kg730 × 360 × 310
ZBW80E80 m³/h3 kW72G 1"86 kg730 × 360 × 310
ZBW160E160 m³/h5.5 kW77G 1 1/2"150 kg884 × 460 × 336
ZBW250GPopular250 m³/h
(300 m³/h @60Hz)
5.5 kW – 6.6 kW960 r/min81 dBG 2 1/2"260 kg
(380 kg Gross)
1256 × 680 × 545
ZBW320E320 m³/h11 kW1420 r/min77G 1 1/2"400 kg1100 × 720 × 1400
ZBW500G500 m³/h15 kW960 r/min82G 2 1/2"640 kg1340 × 1030 × 1600

Key Technical Features of ZBW250G

🛡️

100% Oil-Free Clean Pumping

Completely dry compression chamber design eliminates oil back-streaming, guaranteeing ultra-clean vacuum performance for sensitive industrial tasks.

High-Volume Air Delivery

Provides 250 m³/h at 50Hz (300 m³/h at 60Hz) powered by an efficient 5.5kW to 6.6kW three-phase motor running at 960 r/min for continuous heavy-duty cycles.

📐

Large G 2 1/2" Port & Rigid Build

Equipped with a wide G 2 1/2" connection port and a robust layout (1256 × 680 × 545 mm) to handle massive airflow rates efficiently.

🔇

Optimized Industrial Acoustics

Engineered for high displacement while maintaining a stable noise rating of 81 dB(A), ensuring smooth operations within industrial plants.

Target Industrial Applications

🍱 Large-Scale Food Packaging

Powers industrial vacuum tray sealers and high-throughput packaging lines with rapid evacuation and zero oil contamination risks.

💊 GMP Pharmaceuticals & Vacuum Drying

Delivers high-capacity dry vacuum essential for medical sterile drying ovens, pill coating units, and bulk pharmaceutical transfer.

🔬 Electronics Assembly & Component Handling

Supplies consistent suction power for large SMT pick-and-place matrices and component degassing chambers.

🧪 Chemical Filtration & Distillation

Maintains stable -80 kPa vacuum for heavy industrial chemical filtration, solvent recovery, and coating systems.

Frequently Asked Questions

What are the exact technical specifications for the ZBW250G vacuum pump?

The ZBW250G delivers a flow rate of 250 m³/h at 50Hz (300 m³/h at 60Hz) at -80 kPa rated pressure, powered by a 5.5 kW to 6.6 kW three-phase motor running at 960 rpm. It features a G 2 1/2" port size, noise level of 81 dB(A), net weight of 260 kg, and dimensions of 1256 x 680 x 545 mm.

What connection port size does the ZBW250G oil-free vacuum pump use?

The ZBW250G model is equipped with a large G 2 1/2" outer diameter pipe connection port to handle high-volume airflow smoothly.

Why is dry oil-free operation vital for heavy processing industries?

Dry oil-free compression completely prevents oil contamination in sensitive production lines, meeting high standards for sterile pharmaceutical manufacturing, food processing, and high-speed pick-and-place lines.

What are the shipping package dimensions and gross weight for the ZBW250G?

The ZBW250G unit has a net weight of 260 kg and machine dimensions of 1256 x 680 x 545 mm. The single package size is 140 x 75 x 65 cm with a gross shipping weight of 380 kg.

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