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ML Series 5-30HP
5-30HP MASTERLINE PRESSURE LUBRICATED COMPRESSOR
SETTING THE STANDARD SINCE 1897
ML Series compressors aren’t just durable. They’re also versatile, with a wide range of available configurations. No matter what your application, there’s a Masterline compressor just right for your needs.
Description
Since its inception in 1897, the Masterline has been the most robust, heavy-duty reciprocating air compressor lineup available. The perfect combination of quality components and efficient design make the ML Series rugged, affordable and smart. Because every model is built tough to last a lifetime in demanding working conditions, the ML Series is an outstanding alternative to splash-lubricated reciprocating compressors and small rotary compressors. Choose higher quality. Choose superior durability. Choose ML Series pressure lubricated air compressors.
CENTRO-RING PRESSURE LUBRICATION
Patented FS-Curtis design
- Proprietary technology is an FS-Curtis exclusive
- Supplies pressurized oil internally to all bearings and critical wear surfaces through the rifle-drilled crankshaft and connecting rods
- Helps ensure maximum uptime and increase service life
100% CAST-IRON CYLINDER HEADS, CONNECTING RODS, AND CRANKSHAFT
All cast-iron where it counts for longer life with less maintenance
- Some pumps claim 100% cast-iron yet still have aluminum cylinders, cylinder heads, connecting rods and crankshafts – not FS-Curtis
- Ductile cast-iron crankshaft and connecting rods are stronger, more corrosion-resistant and less likely to break
- Slow-turning pump increases pump life
- Rugged parts and construction for industrial performance
ROBUST QUALITY COMPONENTS
Built for increased longevity and durability
- Industry-leading stainless-steel valve assemblies for increased airflow and reliability
- Oversized tapered main roller bearings to ensure long life
- Premium finned intercooler maximizes heat dissipation
- Metal intake filter/silencer is superior to plastic
- Heavy-duty stamped-steel belt guard
- Suction valve head unloaders for continuous running air compressors
ML Standard Configurations
| Model | Power | Pump | Configuration | Capacity FAD | Tank Size | Dimensions | Weight |
| HP | CFM @ 175 psi | gal. | L x W x H in. | lbs. | |||
| ML5 | 5 | D96 | Baseplate | 19.1 | N/A | 35 x 31 x 34 | 350 |
| ML5 | 5 | D96 | Vertical | 19.1 | 80 | 39 x 32 x 78 | 650 |
| ML5 | 5 | D96 | Horizontal | 19.1 | 80 | 67 x 29 x 52 | 650 |
| ML5 | 5 (x2) | D96 | Duplex | 19.1 (x2) | 120 | 83 x 31 x 57 | 1095 |
| ML7.5 | 7.5 | C79 | Baseplate | 28.7 | N/A | 34 x 31 x 32 | 400 |
| ML7.5 | 7.5 | C79 | Vertical | 28.7 | 80 | 39 x 32 x 78 | 700 |
| ML7.5 | 7.5 | C79 | Horizontal | 28.7 | 80 | 67 x 29 x 52 | 700 |
| ML7.5 | 7.5 (x2) | C79 | Duplex | 28.7 (x2) | 120 | 82 x 31 x 55 | 1300 |
| ML10 | 10 | D97 | Baseplate | 39.8 | N/A | 35 x 31 x 34 | 675 |
| ML10 | 10 | D97 | Horizontal | 39.8 | 120 | 74 x 36 x 57 | 1050 |
| ML10 | 10 (x2) | D97 | Duplex | 39.8 (x2) | 200 | 90 x 37 x 64 | 1950 |
| ML15 | 15 | D97 | Baseplate | 49.5 | N/A | 41 x 33 x 35 | 775 |
| ML15 | 15 | D97 | Horizontal | 49.5 | 120 | 74 x 36 x 59 | 1250 |
| ML15 (x2) | 15 (x2) | D97 | Duplex | 49.5 (x2) | 200 | 90 x 37 x 64 | 2150 |
| ML15+ | 15 | C89 | Baseplate | 55.8 | N/A | 46 x 37 x 35 | 775 |
| ML15+ | 15 | C89 | Horizontal | 55.8 | 120 | 74 x 36 x 57 | 1250 |
| ML15+ (x2) | 15 (x2) | C89 | Duplex | 55.8 (x2) | 200 | 89 x 40 x 64 | 2150 |
| ML20 | 20 | C89 | Baseplate | 65.1 | N/A | 46 x 37 x 35 | 775 |
| ML20 | 20 | C89 | Horizontal | 65.1 | 120 | 74 x 36 x 57 | 1250 |
| ML20 | 20 | C98 | Baseplate | 79.3 | N/A | 48 x 37 x 42 | 1100 |
| ML20 | 20 | C98 | Horizontal | 79.3 | 200 | 78 x 43 x 76 | 2050 |
| ML20 (x2) | 20 (x2) | C98 | Duplex | 79.3 (x2) | 240 | 105 x 53 x 73 | 3800 |
| ML25 | 25 | C98 | Baseplate | 82.4 | N/A | 48 x 37 x 42 | 1200 |
| ML25 | 25 | C98 | Horizontal | 82.4 | 200 | 78 x 43 x 76 | 2150 |
| ML25 (x2) | 25 (x2) | C98 | Duplex | 82.4 (x2) | 240 | 105 x 53 x 73 | 3900 |
| ML30 | 30 | C98 | Baseplate | 102.2 | N/A | 48 x 37 x 42 | 1250 |
| ML30 | 30 | C98 | Horizontal | 102.2 | 200 | 78 x 43 x 76 | 2350 |
| ML30 (x2) | 30 (x2) | C98 | Duplex | 102.2 (x2) | 240 | 105 x 53 x 73 | 4075 |
ML UltraPack Configurations
| Model | HP | Pump | Configuration | Capacity FAD | Tank Size | Dimensions | Weight |
| CFM @ 175 psi | gal. | L x W x H in. | lbs. | ||||
| ML5 | 5 | D96 | Vertical | 19.1 | 80 | 39 x 32 x 78 | 650 |
| ML5 | 5 | D96 | Horizontal | 19.1 | 80 | 67 x 29 x52 | 650 |
| ML5 | 5 (x2) | D96 | Duplex | 19.1 (x2) | 120 | 83 x 31 x 57 | 1095 |
| ML7.5 | 7.5 | C79 | Vertical | 28.7 | 80 | 39 x 32 x 78 | 700 |
| ML7.5 | 7.5 | C79 | Horizontal | 28.7 | 80 | 67 x 29 x 52 | 700 |
| ML7.5 | 7.5 (x2) | C79 | Duplex | 28.7 (x2) | 120 | 82 x 31 x 55 | 1300 |
| ML10 | 10 | D97 | Horizontal | 39.8 | 120 | 74 x 36 x 57 | 1050 |
| ML10 | 10 (x2) | D97 | Duplex | 39.8 (x2) | 200 | 90 x 37 x 64 | 1950 |
| ML15 | 15 | D97 | Horizontal | 49.5 | 120 | 74 x 36 x 59 | 1250 |
| ML15 | 15 (x2) | D97 | Duplex | 49.5 (x2) | 200 | 90 x 37 x 64 | 2150 |
| ML15+ | 15 | C89 | Horizontal | 55.8 | 120 | 74 x 36 x 57 | 1250 |
| ML15+ | 15 (x2) | C89 | Duplex | 55.8 (x2) | 200 | 89 x 40 x 64 | 2150 |
| ML20 | 20 | C89 | Horizontal | 65.1 | 120 | 74 x 36 x 57 | 1250 |
| ML20+ | 20 | C98 | Horizontal | 79.3 | 200 | 78 x 43 x 76 | 2050 |
| ML20+ | 20 (x2) | C98 | Duplex | 79.3 (x2) | 240 | 105 x 53 x 73 | 3800 |
| ML25 | 25 | C98 | Horizontal | 82.4 | 200 | 78 x 43 x 76 | 2150 |
| ML25 | 25 (x2) | C98 | Duplex | 82.4 (x2) | 240 | 105 x 53 x 73 | 3900 |
| ML30 | 30 | C98 | Horizontal | 102.2 | 200 | 78 x 43 x 76 | 2350 |
| ML30 | 30 (x2) | C98 | Duplex | 102.2 (x2) | 240 | 105 x 53 x 73 | 4075 |
Financing Options – Flexible Solutions for Every Operation
Investing in reliable compressed air shouldn’t slow down your business. That’s why FS-Curtis offers flexible financing options designed to make owning an NX Series compressor easier and more affordable.
Why Choose FS-Curtis Financing?
- Conserve Capital – Keep cash flow available for other business needs while still getting the equipment you trust.
- Flexible Terms – Choose from a variety of payment plans that fit your budget and operational needs.
- Fast & Simple Approval – Streamlined application process gets you approved quickly so you can get your system running sooner.
- Upgrade with Confidence – Financing makes it easier to invest in the latest technology, like SmartConnect® 2.0 or UltraPack options, without large upfront costs.
- Protect Your Investment – Pair financing with our warranty for maximum peace of mind.
With FS-Curtis financing, you get the performance and reliability you need today while paying in a way that works best for your business.
