Industrial Air

Mid Pressure Systems

are heavy-duty, continuous-duty 24/7 reciprocating compression systems specifically engineered for operation between 350 and 1,000 PSIG (25 to 70 bar).

Purpose-built 2-stage and 3-stage compressor blocks engineered specifically for mid-pressure duty without the thermal and mechanical stress of re-purposed high-pressure units.

Heavy-duty cast iron cylinders, low operating RPMs, and pressurized oil lubrication with spin-on filtration ensure non-stop manufacturing support.

Operates as standalone atmospheric air compressors or as gas boosters accepting pre-compressed air/nitrogen inlets (100–150 PSIG) to elevate pressure efficiently.

B-CONTROL PLC enclosures monitor interstage pressures, oil pressure safety shutoffs, automated condensate drain intervals, and MODBUS system integration.

Model / Series	Drive Power Range	Operating Pressure & Stages	Frame Style & Footprint	Primary Application
BAUER BMP™ Series (Open Skid Air Compressor)	7.5 HP to 30.0 HP (5.5 to 22 kW)	350 to 1,000 PSIG (2-Stage Reciprocating)	Compact Open Structural Steel Skid	General plant mid-pressure air, hydrostatic testing, and circuit breaker charging.
BAUER Mid-Pressure Boosters (Air & Nitrogen Booster)	10.0 HP to 50.0 HP (7.5 to 37 kW)	350 to 1,000 PSIG (Inlet: 100–150 PSIG)	Heavy-Duty Open Skid / Enclosed Skid	Nitrogen gas boosting from generators, pipeline purging, and laser cutting feed.
BAUER VERTICUS® MP (Silent Cabinet Mid-Pressure)	10.0 HP to 25.0 HP (7.5 to 18.5 kW)	350 to 1,000 PSIG (2 or 3-Stage Silent)	Sound-Attenuated Vertical Cabinet (<70 dBA)	Noise-sensitive indoor laboratories, clean production floors, and indoor utilities.
BAUER Heavy Industrial MP (Heavy Flow MP Systems)	40.0 HP to 125+ HP (30 to 90+ kW)	350 to 1,000 PSIG (Water or Air-Cooled 2-Stage)	Heavy Structural Base Frame / Modular Housing	High-volume 24/7 plastic pre-form lines, large power plants, and central gas boosting.

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Design

Heavy-duty 2-stage and 3-stage reciprocating compression systems built on heavy structural steel open skids, compact vertical frames, or sound-insulated acoustic enclosures.

Application

Plastic Injection & PET Pre-Forms: Medium-pressure air supply for specialized plastic molding and bottle pre-form ejection.
Electric Power Utilities: Dry air and nitrogen charging for high-voltage circuit breakers and transformer gas blankets.
Hydrostatic & Valve Testing: Mid-pressure testing of industrial piping, heat exchangers, boiler tubes, and hydraulic fittings.
Nitrogen Boosting: Elevating membrane-generated nitrogen from 100–150 PSIG up to 500–1000 PSIG for laser cutting and chemical purging.

Type Key

Item	Description
Model Example	BMP15-25-E3
BMP	Product Series Identifier (BMP = BAUER Medium Pressure Series)
15	Compressor Block Frame & Displacement Class
25	Nominal Motor Power (25 HP)
E3	Drive System (E3 = 3-Phase Electric Motor Drive)

Materials

Base Frame & Cabinet: Heavy-gauge structural steel channel base with industrial epoxy finish; acoustic cabinet models feature zinc-coated steel panels with sound-absorbing foam lining.
High-Pressure Piping: Rigid 100% heavy-wall stainless steel interconnecting lines with stainless compression fittings.
Cylinders & Valves: Precision micro-honed cast iron cylinders, nickel-plated valve heads, and stainless steel interstage heat exchangers.

Construction

Balanced Reciprocating Block: Precision-balanced 2 or 3-stage block with pressurized oil pump, oil filter cartridge, and low-RPM flywheel drive.
Cooling Concept: High-flow flywheel fan assemblies with protective safety shrouds for maximum heat dissipation across intercoolers.
Automated Condensate Drain: Zero-loss automatic condensate drain (ACD) system with collection vessel and high-level safety sensor.

Scope of delivery

Complete Compressor / Booster Package: BAUER mid-pressure block, 3-phase electric drive motor, steel frame or acoustic cabinet, and belt drive assembly.
PLC Automation Suite: NEMA 4 control cabinet with B-CONTROL PLC, emergency stop button, pressure transducers, and safety relief valves.
Certifications & Warranty: Factory hydrostatic and flow test certificates, ISO 1217 compliance, and BAUER Standard 2-Year Industrial Warranty.

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