ST650BP03R31 Turbine Air Starter | Half Arc (60-150 PSI) | by Ingersoll Rand
- SKU:
- ST650BP03R31
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 ST650BP03R31 is a genuine IR ST600-series pre-engaged turbine air starter. It delivers up to 65 hp (49 kW) and 260 ft-lb (352 N·m) of breakaway torque at 150 psi from a lightweight 39 lb inline package. Its turbine motor needs no lubrication, and a built-in overtorque safety clutch protects the starter and ring gear. It mounts on an SAE No. 3 flange and drives a right-hand, 12-tooth, 6/8 pitch code 31 pinion. Ingersoll Rand rates the ST600 for diesel engines from 16 to 80 liters. Typical applications include the Caterpillar 3512, Cummins K38 and QSK60, Detroit Diesel 12V-149 and MTU Series 4000.
ST650BP03R31 Specifications
| Ingersoll Rand ST650BP03R31 technical data | |
|---|---|
| Manufacturer / series | Ingersoll Rand ST600 series (ST650 half-arc model) |
| Motor type | Turbine, 50% (half) arc, lube-free |
| Engagement | Pre-engaged, with smooth pre-engagement for limited ring gear wear |
| Maximum power | 65 hp (49 kW) at 150 psi |
| Breakaway torque | 155 ft-lb (210 N·m) at 90 psi / 260 ft-lb (352 N·m) at 150 psi |
| Overtorque safety clutch | Slips between 330 and 440 ft-lb (447 to 596 N·m) |
| Operating pressure | 90 to 150 psi (6.2 to 10.3 bar) |
| Drive medium | Compressed air only |
| Gear ratio | "B" ratio |
| Mounting | SAE No. 3 flange with extended pilot for easier installation |
| Pinion (code 31) | 12 teeth, 6/8 diametral pitch, 20° pressure angle |
| Rotation | Right hand (R). The left-hand version is the ST650BP03L31. |
| Air inlet | 1-1/2 in. NPT through the standard ST700-K166 inlet flange kit (SAE J518C flange, mounting hardware included) |
| Air consumption | 1,450 scfm (684 L/s) at maximum power and 150 psi |
| Engine size | Diesel 16 to 80 L (1,000 to 5,000 cu. in.); carbureted gas 32 to 160 L |
| Orientations | 8 orientation options; offset pre-engage ports for easier fitting |
| Weight | 39 lb (17.7 kg); inlet flange kit 4.5 lb (2.0 kg) |
| Lubrication | None required for the turbine motor |
| Service kits | ST600-TK1 tune-up kit, ST600-SK1 seal kit |
Performance by Supply Pressure
Ingersoll Rand publishes these figures for the ST650B:
| Supply pressure | Breakaway torque | Speed at max power | Max power | Flow at max power |
|---|---|---|---|---|
| 90 psi (6.2 bar) | 155 ft-lb (210 N·m) | 2,300 rpm | 34 hp (25 kW) | 850 scfm (401 L/s) |
| 120 psi (8.3 bar) | 225 ft-lb (305 N·m) | 2,350 rpm | 50 hp (37 kW) | 1,150 scfm (543 L/s) |
| 150 psi (10.3 bar) | 260 ft-lb (352 N·m) | 2,600 rpm | 65 hp (49 kW) | 1,450 scfm (684 L/s) |
If your air supply is regulated at 90 psi or less, the full-arc ST699BP03R31 is the better choice. It delivers 290 ft-lb and 67 hp at 90 psi, and still cranks at 30 psi.
ST650BP03R31 in Service
An ST650BP03R31 mounted on a Detroit Diesel 12V-149. Photo: Ingersoll Rand.
Technicians fitting an ST650BP03R31 to a Caterpillar 3512 in a mine haul truck. At 39 lb, it is light enough to lift into place by hand. Photo: Ingersoll Rand.
Key Dimensions
| Dimension | Inches | Millimeters |
|---|---|---|
| Inlet centerline to mounting flange face | 12.02 | 305.4 |
| Rear of starter to inlet centerline | 4.23 | 107.5 |
| Pinion projection beyond the flange face | 2.00 | 50.9 |
| Nose pilot diameter | 3.62 | 91.9 |
Reference dimensions from Ingersoll Rand. Confirm critical clearances against the certified drawing before you fabricate brackets or plumbing.
Engines That Use the ST650BP03R31
Ingersoll Rand application data lists the ST650BP03R31 for many large diesels with SAE No. 3 starter pads and 12-tooth, 6/8-pitch, right-hand ring gear engagement, including:
- Caterpillar: 3512 (mine haul trucks), D-342 and D-399
- Cummins: K38 series, QSK60, QSW73, L-600 and VF1710
- Detroit Diesel / MTU: 12V-149, 12V4000, 16V4000 and MTU Series 4000
- Waukesha: F1905D, F2894D, F2896D, F3335D, H24DI, L1616, L2145D and VLRDB
- Others: ALCO 251, Alsthom ATL PA4, LeRoi L3000/L3460/L4000, SACM UD30/UD33/UD45, Wärtsilä 25SG and White DNX-V8
Look up your engine in our Air Starter Model Finder, or call us with the engine model and serial number.
How to Read the Model Number
| Code | Meaning |
|---|---|
| ST6 | ST600 series turbine starter |
| 50 | Percent arc: 50% (half) arc for 90 to 150 psi (99 = full arc for 30 to 90 psi) |
| B | Gear ratio |
| P | Pre-engaged |
| 03 | SAE No. 3 mounting flange |
| R | Right-hand rotation (L = left hand) |
| 31 | Pinion: 12 teeth, 6/8 pitch |
Why Choose the ST650BP03R31?
- Lightest in its class. At 39 lb, Ingersoll Rand calls the ST600 the lightest starter in its class, so one technician can install it.
- No lubricator, no oil mist. The turbine motor needs no external lubrication, which removes a maintenance item and keeps the exhaust clean.
- Protects the ring gear. Smooth pre-engagement limits ring gear wear, and the overtorque safety clutch slips at 330 to 440 ft-lb if the engine is locked or kicks back.
- Easy to fit. The extended pilot, offset pre-engage ports and 8 orientation options make it straightforward to install on crowded engines.
ST650BP03R31 FAQ
Can the ST650BP03R31 run on natural gas?
No. Ingersoll Rand specifies the ST600 series for air only. For natural gas operation, ask us about Ingersoll Rand's gas-sealed starters, such as the SS800 vane series or the ST2000 "BG" turbine models.
What is the difference between the ST650 and the ST699?
Both share the ST600 housing and mounting. The ST650 has a 50% turbine arc for 90 to 150 psi supplies. The ST699 has a 99% (full) arc for 30 to 90 psi supplies. Choose by the pressure you can deliver at the starter.
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 1,450 scfm while the engine cranks. Ingersoll Rand's matching accessories are the SRV150 1-1/2 in. relay valve, the ST900-267-24 1-1/2 in. strainer (300 mesh), the 150BMP-1051B (12 V) or 150BMP-2451B (24 V) solenoid valve or SMB-618 push-button valve, the 150BMP-1056 check valve, the 150BMP-1067 drain valve and the 150BMP-1064 pressure gauge.
What does the overtorque safety clutch do?
If the engine is seized or hydraulically locked, or if it kicks back during cranking, the clutch slips between 330 and 440 ft-lb instead of passing the full shock load through the gears and pinion. This protects the starter, the pinion and the flywheel ring gear.
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 ST650BP03R31 we sell is new, genuine Ingersoll Rand equipment. We also stock the complete ST600 series, relay valves, strainers and service kits.
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, ST600 series, and Ingersoll Rand vane and turbine 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.
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