Saylor-Beall PL-4500 Bare Reciprocating Air Compressor Pump – Pressure Lubricated (Includes Flywheel)
51.0 CFM @ 175 PSI | 10–15 HP | Industrial Duty | Made in the USA
High-Capacity Output. Industrial Strength. Built for Long-Hour Operation.
The Saylor-Beall PL-4500 is a high-capacity, two-stage reciprocating air compressor pump designed for operations that require consistent airflow, extended run times, and long-term durability. Delivering 51.0 CFM at 175 PSI of real usable air, this pump is built to handle demanding industrial environments where performance and uptime are critical.
Equipped with a full pressure lubrication system, the PL-4500 provides superior internal protection and significantly longer service life compared to standard splash-lubricated pumps.
Manufactured in Michigan with rugged cast iron construction and precision-machined components, this is a pump built to run hard—day in and day out.
Why Pressure Lubrication Matters
At this level, lubrication isn’t optional—it’s critical.
The PL-4500 uses a gear-driven oil pump system to continuously deliver pressurized oil to the crankshaft, bearings, and connecting rods—ensuring proper lubrication under load and during extended operation.
What That Means for You:
- Longer life in high-duty and continuous-use environments
- Better protection under heat and load conditions
- Reduced wear on critical internal components
- Ideal for facilities running compressors for long hours or multiple shifts
👉 Bottom line: this pump is built to support real production—not occasional use.
Built for Industrial Demands
This is a true heavy-duty compressor pump engineered for serious workloads.
- Heavy-Duty Cast Iron Construction – Built for strength, durability, and vibration resistance
- Pressure Lubrication System – Actively protects internal components under load
- Two-Stage Compression – Higher efficiency and cooler operation
- Low RPM Design – Reduces wear and extends pump life
- Disc-Type Valves – Maximizes airflow and long-term reliability
- Finned Intercooler – Enhances cooling between compression stages
- Centrifugal Unloader – Smooth, no-load startup to reduce motor strain
- Flywheel Included – Ready for system integration or replacement installs
Performance Specifications – PL-4500
- Delivered Air: 51.0 CFM @ 175 PSI
- Motor Range: 10.0 – 15.0 HP
- Pump RPM: 605 – 830
- Shipping Weight: Approx. 450–500 lbs (Pump Only)
- Cylinder Configuration: 2 Cylinders (Large Bore)
- Cylinder Bore: 6⅛" (LP) / 3¼" (HP)
- Stroke: 4½"
👉 What matters: 51.0 CFM at 175 PSI—high-volume air for serious operations.
Head Unloader Option – Simple & Clear
This pump is available with an optional Head Unloader configuration, depending on your system setup.
No Head Unloaders (Standard)
- Compressor shuts off at full pressure
- Restarts when air is needed
- Best for standard applications
Yes – Head Unloaders (Optional Upgrade)
- Pump continues running at full pressure in an unloaded state
- Motor stays running instead of cycling on/off
- Reduces wear on motors and electrical components
- Ideal for high-demand or frequent cycling environments
⚠️ Important
Head unloaders are designed for systems operating in continuous (unloaded) mode.
If your system currently runs start/stop, additional controls or modifications may be required.
Ideal Applications
- Manufacturing and production facilities
- Large woodworking and millwork operations
- Automotive and fleet service centers
- Agricultural processing operations
- Any facility requiring high-volume, consistent compressed air
Why Buy from Compressed Air Advisors Online?
At Compressed Air Advisors Online, we’re America’s choice for compressed air solutions.
- Nationwide expertise across industrial systems
- Premium brands like Saylor-Beall
- Guidance on system sizing and configuration
- Fast shipping and dependable support
We don’t just sell compressors—we help you build systems that perform.