Truck-mounted Concrete Boom Pumps
28Z-Meter
 
Click on either truck image above
for a larger view.
- 92 foot Vertical Reach
- Versatile 4-Section Boom
- Exclusive Multi-Z Boom Design
- Short Overall Length Without Overhang
- Low 21-foot-4-inch (6.5m) Unfloding Height
- Fully Hydraulic Diagonal Outriggers
- Free Flow Hydraulics
| Truck-Mounted
Specifications |
| Based
on Model Mack MR688S |
| Length
|
31 ft / 9 in
|
(9.68m)
|
| Width
|
8 ft / 2 in
|
(2.50m)
|
| Height
|
12 ft / 10 in
|
(3.91m)
|
| Wheelbase |
195 in
|
(4953mm)
|
| Front
axle weight |
18,300 lbs
|
(8,300kg)
|
| Rear
axle weight |
30,176 lbs
|
(13,687kg)
|
| Approx
total weight |
48,476 lbs
|
(21,987kg)
|
|
| Boom
Specifications • Multi-Z Design |
| |
| Height &
Reach |
Vertical
reach
|
90 ft / 3 in
|
(27.50m)
|
| Horizontal
reach |
78 ft / 3 in
|
(23.85m)
|
| Reach
from front of truck* |
70 ft / 6 in
|
(21.49m)
|
| Reach
depth |
57 ft / 1 in
|
(17.40m)
|
| Unfolding
height |
21 ft / 4 in
|
(6.5m)
|
| |
| 4-Section
Boom |
1st
section articulation
|
|
103°
|
| 2nd section articulation |
|
180°
|
| 3rd
section articulation |
|
265°
|
| 4th section articulation |
|
263°
|
| |
| 1st
section length |
22 ft / 10 in
|
(6.96m)
|
| 2nd section length |
18 ft / 6 in
|
(5.64m)
|
| 3rd
section length |
18 ft / 5 in
|
(5.61m)
|
| 4th section length |
18 ft / 6 in
|
(5.64m)
|
| |
| General Specs
|
Pipeline
size (ID) metric ends
with couplings
|
5 in
5.5 in
|
(125mm)
(140mm)
|
| Rotation |
|
365°
|
| End
hose-length (heavy duty) |
10 ft
|
(3m)
|
| End hose-diameter |
5 in
|
(125mm)
|
| Outrigger
spread L-R — front telescopic diagonal |
20 ft / 4 in
|
(5.41m)
|
| Outrigger spread
L-R — rear swing-out |
8 ft / 2 in
|
(2.25m)
|
|
| |
Output-
|
rod
side
piston side |
142 yd3/hr
(109 m3/hr)
85 yd3/hr (65 m3/hr)
|
210 yd3/hr
(160 m3/hr)
146 yd3/hr (112 m3/hr)
|
| Pressure- |
rod
side
piston side |
1015 psi (70 bar)
1624 psi• (112 bar)•
|
1233 psi (85 bar)
1885 psi• (130 bar)•
|
| Concrete
cylinder diameter |
9 in (230mm)
|
9 in (230mm)
|
| Stroke
length |
83 in (2100mm)
|
83 in (2100mm)
|
Max
strokes
per minute- |
rod
side
piston side |
21
13
|
31
21
|
| Volume
control |
0-Full
|
0-Full
|
| Vibrator |
Standard
|
Standard
|
| Hard-chromed
concrete cylinders |
Standard
|
Standard
|
| Hydraulic
system |
Free Flow
|
Free Flow
|
| Hydraulic
system pressure |
5075 psi (350 bar)
|
5075 psi (350 bar)
|
| Differential
cylinder diameter |
5.1 in (130mm)
|
5.15 in (140mm)
|
| Rod
diameter |
3.1 in (80mm)
|
3.1 in (80mm)
|
| Maximum
size aggregate |
2.5 in (63mm)
|
2.5 in (63mm)
|
| Water-tank |
185 gal (700L)
|
185 gal (700L)
|
|
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|
