|
AIR MOTORS
|
HT-050
175 RPM, 22 lb-ft
torque
The HT-050 motor is primarily used for open-stone and large
aggregate systems. |
Ingersoll-Rand
and Atlas Copco multi-vane air motors have been selected
because of their dependability, low maintenance and excellent
design. The motors are compact, lightweight with a high
power output. Other features include cool running characteristics
that minimize the effects of hot, wet or dusty conditions.
Instant starting and stoping eliminate the delays of motor
acceleration or deceleration periods, preventing electrical
sparks and producing safe operation in hazardous conditions.
It will not overheat or burn out even when overloaded or
run to stall. No hydrocarbon release makes the HoverTrowel
ideal for food, beverage and other sensitive industrial
areas.
HoverTrowel's
standard motor for common epoxy systems is the HT-167. Other
motors are available for some flooring systems with unique
physical properties and characteristics. The motors produce
a range of rpm and torque loads to suit the needs of most
of the polymer toppings on the market today. Distinct mortar
systems will continue to be evaluated to determine the best
suited motor.
|
|
HT-167
53 RPM, 78 lb-ft torque
The HT-167 is used
for most standard hand and power trowel systems. |
|
HT-188
52 RPM, 128 lb-ft torque
The HT-188 is used for very resin rich systems, as well as
the cementatious toppings on the market. This motor will perform
well on all systems, making it extremely versatile. |
 |
HT-AC
65
RPM, 185 lb-ft torque
The HT-AC is used
for very resin rich systems, as well as the cementatious toppings
on the market. This motor will perform well on all systems,
making it extremely versatile. |
INGERSOLL-RAND AIR POWER ADVANTAGES
- Infinitely variable speeds and torques via pressure regulation or air valves -- no costly controls required
- Instant starting, stopping and reversing eliminates the delays of motor speed-up or slow-down periods
- Will not overheat or burn out, even when overloaded or run to stall
- Safe operation in hazardous conditions, with no electrical sparks or hydraulic fluids
- Cool running characteristics minimize the effects of hot, wet or dusty surroundings
- Low maintenance, based on simplicity of design and strength of construction
- Excellent design flexibility -- a function of compact size, light weight, and high power output
- Temperature range -- up to 150°F with standard lubrication and up to 300°F with high temperature lubrication
Series M004 Multi-Vane Air Motor Specifications
| Model |
Max. Power |
Speed at Max. Power |
Free Speed |
Starting Torque |
Stall Torque |
Air Consumption at Max. Power |
Weight |
| hp |
kw |
rpm |
rpm |
lb-ft |
Nm |
lb.-ft. |
Nm |
scfm |
m3/m |
lb |
kg |
M004RHR050AR3
M004RHR083AR3
M004RHR167AR3 |
0.41
0.41
0.41 |
0.31
0.31
0.31 |
175
106
53 |
315
190
95 |
*16.5
*27.5
*55.0 |
*22.4
*37.3
*74.5 |
*22.1
*36.7
*73.3 |
*30.0
*49.7
*99.4 |
18.5
18.5
18.5 |
0.52
0.52
0.52 |
2-11/16
2-11/16
2-11/16 |
1.22
1.22
1.22 |
*Applications with these models must be limited to 33 lb.-ft. (44.7 Nm) torque. Performance figures are at 90 psig (620 kPa) air pressure.
These motors are non-reversible; the direction of rotation is counterclockwise when facing the shaft.
Series M007 Multi-Vane Air Motor Specifications
| Model |
Max. Power |
Speed at Max. Power |
Free Speed |
Starting Torque |
Stall Torque |
Air Consumption at Max. Power |
Weight |
| hp |
kw |
rpm |
rpm |
lb-ft |
Nm |
lb.-ft. |
Nm |
scfm |
m3/m |
lb |
kg |
M007RHR188BR6
M007RHR275BR6
M007RHR374BR6 |
0.76
0.76
0.76 |
0.57
0.57
0.57 |
52
35
26 |
103
70
52 |
96
*140
*191 |
130
*190
*259 |
128
*187
*254 |
174
*254
*344 |
36
36
36 |
1.02
1.02
1.02 |
7-3/8
7-3/8
7-3/8 |
3.4
3.4
3.4 |
*Applications with these models must be limited to 224 lb.-ft. (304 Nm) torque. Performance figures are at 90 psig (620 kPa) air pressure.
These motors are non-reversible; the direction of rotation is counterclockwise when facing the shaft.
Determining Performance Characteristics At Air Pressures Other Than 90 psig
| Air Pressure, (psig) |
Free Speed, (rpm) |
Air Consumption at Free Speed, (scfm) |
Max. Power, (hp) |
Speed at Max. Horsepower, (rpm) |
Torque at Max. Horsepower, (lb-ft) |
Air Consumption at Max. Power, (scfm) |
Stall or Starting Torque, (lb-ft) |
| 40 |
80% |
45% |
30% |
80% |
37.5% |
45% |
45% |
| 50 |
84% |
56% |
44% |
84% |
52.4% |
56% |
56% |
| 60 |
88% |
67% |
58% |
88% |
65.9% |
67% |
67% |
| 70 |
92% |
78% |
72% |
92% |
78.3% |
78% |
78% |
| 80 |
96% |
89% |
86% |
96% |
89.6% |
89% |
89% |
| 90 |
100% |
100% |
100% |
100% |
100% |
100% |
100% |
| 100 |
104% |
111% |
114% |
104% |
109.6% |
111% |
111% |
As air pressure changes, the performance characteristics will change by the percentages given above. Example: Knowing the performance characteristics of a Model M004RHR050AR3 reversible ungoverned Air Motor at 90 psig (620 kPa) it is a simple matter to determine its characteristics at another air pressure. Using the percentages from the table for 60 psig (414 kPa), the performance becomes:
| Characteristic |
Performance at 90 psig |
|
Percentage Reduction |
|
Performance at 60 psig |
Maximum Power (hp)
Free Speed (rpm)
Speed at Max. Power (rpm)
Max. (Stall) Torque (lb-ft)
Torque at Max. Power (lb-ft)
Starting Torque (lb-ft)
Air Consumption at Free Speed (scfm)
Air Consumption at Max HP (scfm) |
.41
315
175
22.1
11.7
16.5
21.2
18.5 |
x
x
x
x
x
x
x
x |
58%
88%
88%
67%
65.9%
67%
67%
67% |
=
=
=
=
=
=
=
= |
.24
277
154
14.8
7.7
11.1
14.2
12.4 |
|
 IR Air Motor Performance Curves
Use the performance curves shown to the right for the HoverTrowel's air motor characteristics. Click the chart to see an enlarged version. Performance data may vary slightly depending on gear ratios; when this occurs, median performance is indicated. Follow the following guidelines for interpreting the performance curves.
Horsepower
- Locate operating speed on the correct horizontal axis of the bottom chart.
- Read Horsepower from the correct curve in the bottom chart.
Torque
- Locate operating speed on the correct horizontal axis of the bottom chart.
- Read Torque from the correct curve in the bottom chart.
Air Consumption
- Locate operating speed on the correct horizontal axis on the bottom chart.
- Read Air Consumption from the correct curve in the top chart.
|
Air Supply or Exhaust Regulation
Reducing or restricting the amount of air supplied to the motor has a similar effect to reducing the air pressure. Choking or restricting the exhaust has a somewhat different effect, with the speed decreasing much more than the torque. The effects of changes in pressure, air supply and exhaust regulation are summarized below. Exact variations in performance with "choked" motors are not tabulated; however, "on the job" tests will usually produce the desired results; sometimes from a combination of pressure adjustments and inlet and exhaust restrictions.
| Air Regulation |
Speed |
Torque |
| Reduced air pressure, or restricting volume of air to motor |
Reduced |
Greatly Reduced |
| Choking or restricting exhaust |
Greatly Reduced |
Reduced |
|
|
