ST950BI03L32 Turbine Air Starter by Ingersoll Rand
- SKU:
- ST950BI03L32
Manufacturer: Ingersoll Rand
Guaranteed 100% Authentic
Made in the USA
Condition: New
*Rebuilt Models Have the letter "R" at the end of their model number
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Our Phone #: 1-800-353-4676
Our Email: [email protected]
Description
The Ingersoll Rand ST950BI03L32 is a genuine IR ST900-series inertia turbine air starter. It delivers up to 55 hp (41 kW) at 150 psi, 250 ft-lb of breakaway torque, and Ingersoll Rand rates B-ratio ST700/ST900 starters for diesel engines from 16 to 130 liters. It has a half-arc (90 to 150 psi) turbine, an SAE No. 3 flange and a left-hand 12-tooth 6/8 pitch pinion. Ingersoll Rand's current replacement in this size is the ST1000 series.
ST950BI03L32 Specifications
| Ingersoll Rand ST950BI03L32 technical data | |
|---|---|
| Manufacturer / series | Ingersoll Rand ST900 series (ST950) |
| Motor type | Turbine, 50% (half) arc, lube-free; sealed, oil-lubricated planetary gears |
| Engagement | Inertia |
| Maximum power | 55 hp (41 kW) at 150 psi |
| Breakaway torque | 160 ft-lb (217 N·m) at 90 psi / 250 ft-lb (339 N·m) at 150 psi |
| Operating pressure | 90 to 150 psi (6.2 to 10.3 bar) |
| Drive medium | Compressed air or natural gas (sealed) |
| Gear ratio | "B" gearing, 2.18:1 |
| Mounting | SAE No. 3 flange |
| Pinion (code 32) | 12 teeth, 6/8 pitch, left-hand |
| Rotation | Left-hand (L) |
| Air inlet / exhaust | 1-1/2 in. type J518C flange inlet (ST700-K166 inlet flange kit) / 4 in. NPT exhaust |
| Air consumption | 1,300 scfm at maximum power |
| Recommended engine size | Diesel engines from 16 to 130 L |
| Extended cranking (over 10 s) | Yes: IR rates the ST900 series for extended cranking |
| Orientations | 4 inlet, 4 exhaust and 16 drive-housing positions |
| Weight | 62 lb (28.1 kg) |
| Lubrication | None required for the turbine motor |
Performance by Supply Pressure
Ingersoll Rand publishes these figures for the ST950 with B gearing (inertia and pre-engaged):
| Supply pressure | Breakaway torque | Speed at max power | Max power | Flow at max power |
|---|---|---|---|---|
| 90 psi (6.2 bar) | 160 ft-lb (217 N·m) | 1,950 rpm | 30 hp (22 kW) | 850 scfm (401 L/s) |
| 120 psi (8.3 bar) | 225 ft-lb (305 N·m) | 2,100 rpm | 45 hp (34 kW) | 1,100 scfm (519 L/s) |
| 150 psi (10.3 bar) | 250 ft-lb (339 N·m) | 2,350 rpm | 55 hp (41 kW) | 1,300 scfm (614 L/s) |
ST950BI03L32 Dimensions
| Dimension | Inches | Millimeters |
|---|---|---|
| Overall length to mounting flange | 17-13/32 | 442.1 |
| Inlet centerline to mounting flange | 12-1/2 | 317.5 |
| Drive projection beyond flange | 5-9/64 | 130.6 |
| Height | 9-5/8 | 244.5 |
| Width | 6-7/8 | 174.6 |
Reference dimensions from Ingersoll Rand. Confirm critical clearances against the certified drawing before you fabricate brackets or plumbing.
Confirming Fit
Match the full model number on your existing starter's nameplate, or send us the engine make, model and serial number. You can also use our Air Starter Model Finder.
How to Read the Model Number
| Code | Meaning |
|---|---|
| ST9 | ST900 series turbine starter |
| 50 | Percent arc: 50% (half arc, 90 to 150 psi) |
| B | Gear ratio 2.18:1 (B = 2.18:1, C = 2.53:1, D = 3.44:1) |
| I | Inertia (P = pre-engaged) |
| 03 | SAE No. 3 flange (09 = IR "09" flange for D ratio) |
| L | Left-hand rotation |
| 32 | Pinion: 12-tooth 6/8 pitch |
Why Choose the ST950BI03L32?
- High torque, broad range. B and C gearing options cover a wide range of starting torques.
- Lube-free turbine. No lubricator and no oil mist; sealed planetary gears are maintenance free.
- Air or natural gas. Sealed for gas and air applications.
- Proven design. The ST700/900 turbine family has powered diesel and gas engines in marine, oil and gas, locomotive and power generation service.
- Current replacement available. Ingersoll Rand's ST1000 series is the direct successor.
ST950BI03L32 FAQ
What is the opposite-rotation version of the ST950BI03L32?
The ST950BI03R31 is the opposite-rotation counterpart. Power, flange and gearing are the same; only the rotation and the matching pinion code differ. Match the rotation printed on your existing starter's nameplate.
Is this starter still available, and what replaces it?
Ingersoll Rand's ST1000 series supersedes the ST700 and ST900 (the ST750 and ST950 go to the ST1060, and the ST799 and ST999 go to the ST1099, with the same ratio, drive, flange and pinion). Call us and we will confirm current availability of the ST950BI03L32 and quote the ST1000 alternative side by side. See the ST1000 series.
Can it crank for a long time?
Yes. Ingersoll Rand rates the ST900 series for extended cranking.
What air supply and accessories does it need?
Supply 90 to 150 psi through a 1-1/2 in. line, with enough receiver volume to deliver up to 1,300 scfm while the engine cranks. Ingersoll Rand's matching accessories include the SRV150 relay valve (SRV150SS for gas), the ST900-267-24 1-1/2 in. strainer (300 mesh), 150BMP-1051B / 150BMP-2451B solenoid valves and SMB-618 / SMB-G618 push-button valves.
Buy from a Factory-Authorized Ingersoll Rand Distributor
AirStartersDirect.com is a factory-authorized Ingersoll Rand distributor operated by Zampini Industrial Group, which has supplied engine starting equipment since 1987. Every ST950BI03L32 we sell is new, genuine Ingersoll Rand equipment. We supply the ST700 and ST900 series, the current ST1000 series, and the relay valves, strainers and tune-up kits that go with them.
Need help confirming fit? Call 1-800-353-4676 with your engine make, model and serial number for a fast quote and free selection help.
Specifications source: Ingersoll Rand Engine Starting Systems catalog and Ingersoll Rand ST900 Series Air Starters.
Ingersoll Rand pneumatic air starters can replace any factory mounted starter engine and simultaneously offer a variety of helpful benefits. Compared to conventional electric starters, a pneumatic air starter occupies considerably less space as it is run by air. Pneumatic air starters are also considered safer in hazardous environments as they do not produce electrical sparks like electric starters sometimes do, thus eliminating the risk of igniting flammable materials that may be present.
Ingersoll Rand air starters have significantly more torque than electric starters of equivalent size, and that allows even a small air starter to start very large engines and turbines. In addition, electric starters as well as their wiring may become excessively hot in the event that it takes longer than expected to start the engine, while air-starters can be run for as long as their air supply lasts. Turbine starters provide even more torque and tend to be simpler, and therefore are a natural fit for turbine engines. Turbine air starters are utilized extensively on large turbofan engines commercial and military aircraft; as well as marine ships and vessels, trains, heavy construction equipment, and more.
ST900 Series Manuals and Parts Lists
- Series ST900 (ST950 / ST999) Turbine Air Starter Installation and Maintenance Manual (P7156) Installation & maintenance manual, 28 pages
- ST900 Inertia, ST900D Ratio and ST900 Pre-Engaged Air Starters Photo Sheet (Form 52274-A) Product information, 1 pages
- Starter Motors for Solar Turbines - ATEX Product Safety Information (10550663) Safety information, 8 pages
- Engine Starting Systems Catalog: Turbine, Vane and Gas Turbine Air Starters, Barring Motors and Accessories (ENG32760) Catalog, 64 pages
- AirStartersDirect 2024 Ingersoll Rand Air Starter Catalog: Turbine Starters, Vane Starters, Barring Motors and Accessories Catalog, 168 pages
- Air Starter Accessories Catalog Section: Valves, Strainers, Mufflers, Regulators and Lubricators Catalog, 18 pages
- Engine Starting Systems Catalog: Air Starter Selection Guide, Series Data and Accessories (Form ASM-0304-010) Catalog, 92 pages
- Engine Starting Systems Air Starter Catalog (Form 51600-C) Catalog, 68 pages
Specifications
Series: |
ST900 |
Model: |
ST950 |
Starter Type: |
Turbine |
Engagement: |
Inertia |
Pinion Rotation: |
Left hand |
Pinion: |
12 teeth, 6/8 DP |
Pinion Code: |
32 |
Pressure Angle: |
20° |
Mounting Flange: |
SAE 3 |
Gear Ratio: |
2.18:1 |
Max Power: |
55 hp (41 kW) at 150 psi |
Supply Pressure: |
90-150 psi |
Max Supply Pressure: |
150 psi |
Diesel Engines Up To: |
320 L |
Air Consumption: |
1300 scfm (614 L/s) at 150 psi |
Exhaust: |
Directional |
Weight: |
62-63 lb |
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Frequently Asked Questions
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