BENDIX BW2355 Fascicule

Lighter weight and more compact to address OE fit constraints, this dynamic
single cylinder compressor utilizes reed valve technology for improved
operating efficiency.  The BA-921

™

compressor is available for a wide range

of build platforms, including specialty vocational applications, and features:

• The highest boost capability on the market today – 43.5 psig
• High thru-drive capacity – up to 125 foot pounds
• Improved air quality along with faster recovery
• A drive train saver crankshaft to prevent damage to the gear train or

auxiliary components

When you need maximum air delivery, the BA-922

™

 “Big Twin” air compressor is

for you.  This high air output compressor is smaller than previous 4 cylinder
models, but still supplies 32 cfm (at 1250 RPM) to meet the needs of even the
most demanding specialty vocational applications. The BA-922

™

compressor

employs many of the same exceptional design elements as the BA-921

™

compressor,

its single cylinder partner, including the robust reed valve technology.  The
powerful BA-922

™

compressor also incorporates:

• Standard North American unloader valving – eliminating the special valve

requirements normally associated with 2 cylinder high output compressors

• A drive train saver crankshaft to prevent damage to the gear train or auxiliary

components

• High thru-drive capacity – up to 125 foot pounds

With over 3 million units installed as original equipment and over 3 trillion
in service miles operating on the road today, the Bendix

® 

 Tu-Flo

®

 550 air

compressor and Tu-Flo

®

 750 air compressor models remain the hard-

working, time-tested industry standard for fleets and OEMs across North
America. These commercial vehicle workhorse models are available for
all major on-highway engines, including Detroit Diesel

®

, Caterpillar

®

, Mack

®

and International

®

 to name just a few.  But we don’t stop there.  As today’s

commercial vehicles evolve and the demands for compressed air increases,
Bendix continues to enhance and improve the Tu-Flo

®

 550 air compressor

and Tu-Flo

®

 750 air compressor line to meet and exceed customer needs

with a focus on areas such as:

• Eliminating leaks
• Oil carryover performance

     •   Higher boost capability

• Even greater efficiency

Tu-Flo

®

 550

Tu-Flo

®

 750

BA-921

™

BA-922

™

Typical Weight

53 lbs.

53 lbs.

37 lbs.

64 lbs.

(24 Kg.)

(24 Kg.)

(17 Kg.)

(29 Kg.)

Number of Cylinders

2

2

1

2

Displacement at
 1250 RPM

13.2 CFM

16.5 CFM

15.8 CFM

31.6 CFM

Maximum

3000

2400

3000

3000

Recommended RPM

RPM

RPM

RPM

RPM

Approximate
Horsepower
Required at 1250 RPM

2.5 HP

3.2 HP

3.2 HP

6 HP

at 120 PSIG
(naturally aspirated)

Maximum RPM

N/A

Turbocharge Limit

2200 RPM

1900 RPM

3000 RPM

 Naturally
 Aspirated

Only

Maximum Pressure

N/A

(gauge) Turbocharge  Limit

*

30 PSIG

30 PSIG

43.5 PSIG

Naturally

 Aspirated

Only

Maximum Inlet Air

N/A

Temperature

250º F

250º F

250º F

Naturally

Turbocharge Limit

(121º

 

C)

(121ºC)

(121ºC)

 Aspirated

Only

Thru-drive Capacity*

100 ft. lbs.

100 ft. lbs.

125 ft. lbs.

125 ft. lbs.

 * indicates an application specific feature.

AHEAD OF THE CURVE

TM