Ingersoll Rand literature · Brochure
Ingersoll Rand ST600 Air Starting Systems Brochure: ST650GB and ST699GB (Form 52626)
Six-page Ingersoll Rand brochure for the ST600 Series turbine air starter, aimed at mining, marine and genset engines. It lists the starter's features and benefits, gives outline dimensions for the pre-engaged and inertia drive versions, and charts torque and horsepower for the ST650GB and ST699GB. A labeled cutaway and a model-number key explain the arc, gas sealing, gear ratio, drive, flange, rotation and pinion options.
Document at a Glance
- Publisher
- Ingersoll Rand
- Document type
- Brochure
- Form / number
- Form 52626, 1998
- Language
- English
- Pages
- 6
- File
- PDF, 872 KB
What's in This Document
| Section | Pages | What it covers |
|---|---|---|
| ST600 Air Starting Systems (cover) | 1 | Cover with engine and vessel photography. |
| ST600 Air Starting Systems: Features and Benefits | 2 | Introduction and a features-to-benefits list for the ST600 Series starter. |
| Series ST600 Pre-Engaged / Series ST600 Inertia | 3 | Outline dimension drawings in inches with millimetres for both drive types. |
| ST650GB Performance Curves / ST699GB Performance Curves | 4 | Torque and horsepower curves with tabulated values at three pressures for each model. |
| Cutaway features and model code | 5 | Labeled cutaway of the starter and a breakdown of the ST650GBP03R31 model code. |
| Back cover | 6 | Engine Starting Systems contact block and form number. |
Key Specifications and Data
| Item | Value | Page |
|---|---|---|
| Weight | 37 pounds | 2 |
| Pre-engaged overall length | 18 in (457 mm) | 3 |
| Inertia overall length | 20.7 in (525 mm) | 3 |
| Rear deflector travel | 1.00 in (25 mm) | 3 |
| Pre-engaged control ports | 1/4 NPT (IN) and 1/4 NPT (OUT) | 3 |
| Air inlet | SAE O-ring flanged fitting or 1-1/2 in NPT flange inlet | 5 |
| Turbine arc options | 50% arc or 99% arc | 5 |
| ST650GB maximum hp | 70 hp at 2700 rpm, 150 psi | 4 |
| ST699GB maximum hp | 75 hp at 2600 rpm, 90 psi | 4 |
| Lubrication | Turbine motor needs no external lubrication; transmission sealed with oil bath | 5 |
| Drive types | Pre-engaged (P) or inertia (I) | 5 |
| Natural gas use | Use the ST600K-350 exhaust kit | 5 |
ST650GB performance (flow unit not printed)
| PSI | Torque @ maximum | Speed @max hp | hp max | Flow @ max hp |
|---|---|---|---|---|
| 90 | 160 | 2400 | 38 | 875 |
| 120 | 230 | 2550 | 54 | 1150 |
| 150 | 275 | 2700 | 70 | 1450 |
ST699GB performance (flow unit not printed)
| PSI | Torque @ maximum | Speed @max hp | hp max | Flow @ max hp |
|---|---|---|---|---|
| 30 | 110 | 2000 | 20 | 450 |
| 60 | 210 | 2400 | 47 | 1035 |
| 90 | 310 | 2600 | 75 | 1650 |
ST600 model code key, example ST650GBP03R31
| Code position | Example | Meaning |
|---|---|---|
| Starter series | ST6 | ST600 series |
| Arc | 50 | 50% arc (99 = 99% arc) |
| Gas sealed | G | Gas sealed |
| Gear ratio | B | Gear ratio letter |
| Drive | P | P = Pre-Engaged, I = Inertia |
| Flange | 03 | Flange code |
| Rotation | R | R = Right, L = Left |
| Pinion | 31 | Pinion code |
Models Covered
Model codes as printed in the document. Linked codes go to the matching Ingersoll Rand starter in our catalog.
ST650GBP03R31 ST650GB ST699GB
Service Kits and Part Numbers
| Part number | Description | Page |
|---|---|---|
| ST600K-350 | Exhaust Kit, always used for natural gas applications | 5 |
Confirm part numbers against the serial and model plate of your starter. For any part not listed in our catalog, send us the number.
Frequently Asked Questions
How much does the Ingersoll Rand ST600 air starter weigh?
The brochure gives 37 pounds for the ST600 Series starter.
What is the difference between the ST650GB and ST699GB?
The model code's arc digits mark a 50% arc turbine (ST650) versus a 99% arc turbine (ST699). The ST650GB is charted at 90-150 psi and the ST699GB at 30-90 psi, peaking at 70 hp and 75 hp respectively.
Can the ST600 starter be used on natural gas?
The G in the model code denotes a gas-sealed starter, and the brochure says to always use the ST600K-350 exhaust kit in natural gas applications.
Does the ST600 need an air line lubricator?
No. The Multi-Torque turbine motor needs no lubrication and the transmission is permanently sealed with oil bath lubrication.
How long is the ST600 starter?
The pre-engaged version is 18 in (457 mm) overall and the inertia version 20.7 in (525 mm), per the outline drawings.
Need the parts or the starter in this document? Send the model number from your starter's plate and we will confirm the right Ingersoll Rand part or replacement.
Source: Ingersoll Rand, Form 52626, 1998. Summary and tables prepared by AirStartersDirect.com, an authorized Ingersoll Rand air starter distributor; the PDF is the authoritative version. Page numbers refer to the PDF file. Reviewed October 2026.
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