A Boom With All The Right Moves
Unique, Five-Section Z-Fold Boom
Offers The Flexiblity To Adapt To Different Loads
Easily Handles Unusual Job Site Configurations
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Putzmeister 31Z-Meter Truck-Mounted Concrete Boom Pump

The highly flexible 31Z is one of Putzmeister’s best kept secrets. The unique Z-Fold boom was the first five-section 100-foot boom on the market. It can be strategically positioned for precise concrete placement in unusual job sites just as easily as in typical applications. Rack and pinion slewing provides better weight distribution and greater reach with smooth rotation. Set up is quick even on tight job sites, and the low unfolding height and boom flexibility allow you to stay in one location until the job is finished.

Animations

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Exclusive Ergonic® Control System

Ergonic Brochure

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• A smoother pumping process
• Reduced component wear
• Low fuel consumption
• Fewer vibrations in the machine and boom
• Fully electronic control of the concrete pump
• Fewer hydraulic components
• Optimized output for greatest efficiency

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An integral component of the EPS module, Ergonic Output Control (EOC) reduced fuel consumption, wear and noise. EOC automatically adjusts the engine speed to the minimum required for the delivery rate specified by the operator on the remote control.

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The Ergonic system features the Ergonic Graphic Display (EGD), a three-inch square color LCD screen on the modular control box. When the equipment is on, the main menu shows:
• Hydraulic fluid temperature
• Operating hours
• Delivery pressure/delivery pressure limit
• Delivery rate/delivery rate limit

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Putzmeister Advantages

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Only Putzmeister has the technology to offer both high output and high pressure with the same setup.

Cell .12H
Rod side output 144 yd³/hr (110m³/hr)
Piston side output 97 yd³/hr (74m³/hr)
Rod side pressure 1233 psi (85 bar)
Piston side pressure 1885 psi• (130 bar•)
Material cylinder diameter 9" (230mm)
Stroke length 83" (2100mm)
Rod side strokes per minute 21
Piston side strokes per minute 14
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Cell .16H
Rod side output 210 yd³/hr (160m³/hr)
Piston side output 141 yd³/hr (108m³/hr)
Rod side pressure 1233 psi (85 bar)
Piston side pressure 1885 psi• (130 bar•)
Material cylinder diameter 9" (230mm)
Stroke length 83" (2100mm)
Rod side strokes per minute 31
Piston side strokes per minute 21
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Ideal for high-pressure applications, our S-Valve handles even the most extreme mixes with ease. Built for years of durability, its thick-walled valve construction features exclusive hard-chromed concrete cylinders and multi-piece piston cup design.

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Putzmeister boom pumps feature a single proximity switch in each position. Redundancy is not necessary because the Ergonic Pump Control System can override the switches if necessary.

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All Putzmeister boom pumps feature the robust yet lightweight EZ Clean Out RS 909 hopper, which is engineered for performance and durability. Offering 19.4 cu. ft. (550L) capacity, the hopper uses one hard-faced remixer paddle motor and grate-mounted vibrator. The grate is constructed of high-strength steel with welded connections for a long wear life.

An innovative RFID safety switch incorporated in the hopper disables the machine when the grate is opened.

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Putzmeister pumps feature an exclusive free flow hydraulic system that performs to higher standards at lower cost than other pumps. Its valve-less intelligent monitoring system takes oil into the drive cylinders with no loss of pressure to enhance the pump’s service life while increasing power and convenience.







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Our exclusive Econo-Gear™ helps achieve greater fuel efficiency by performing the setup, pumping and cleanup operations in a gear that allows for the use of a lower engine speed. In addition to fuel savings, Econo-Gear also reduces stress on wear parts and lowers noise levels. 

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Low ceiling heights and unusual concrete placing challenges are easily tacked with the versatility of Putzmeister’s Z-Boom design. Booth the Multi-Z and Z-Fold configurations can begin a pour before the boom is fully unfolded. Additionally, these four- and five-section booms can easily maneuver around obstacles to achieve the maximum reach and flexibility possible.

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Putzmeister’s One-Sided Support (OSS) outrigger system allows the boom pump operator to reduce the outrigger span on the non-working side of the unit. Through a series of sensors, OSS safely achieves set up in confined areas without full outrigger deployment. The sensors maintain a defined working envelope that prevents the operator from positioning the boom outside of a safe operational range.

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Putzmeister’s HBC-Radiomatic power boost and frequency hopping remote control system ensure minimum interference with other frequency transmitters. A fully proportional cable remote is also standard. Unlike other systems, the radio and cable remote systems are completely independently, offering redundancies to ensure complete proportional operation with either control.

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Specification Tables

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Boom Style
Boom Style Z
Number of sections 5
Height & Reach
Vertical reach 100' 1" (30.51m)
Horizontal reach 87' 3" (26.60m)
Reach from front of truck* 79' 9" (24.30m)
Reach depth 66' 11" (20.40m)
Unfolding height 18' 8" (5.70m)
Boom Section Articulation
1st section articulation 98°
2nd section articulation 180°
3rd section articulation 250°
4th section articulation 246°
5th section articulation 251°
Boom Section Length
1st section length 24' 7" (7.50m)
2nd section length 16' 9" (5.10m)
3rd section length 16' 5" (5.00m)
4th section length 15' 9" (4.80m)
5th section length 13' 9" (4.20m)
General Specifications
Pipeline Size (ID) metric ends 5" (125mm)
Rotation 360°
End hose - length 10' 0" (3.00m)
End hose - diameter 5" (125mm)
Outrigger spread L-R - front hydraulically exteded out & down 20' 8" (6.30m)
Outrigger spread L-R - rear hydraulically swing out & extend down 20' 8" (6.30m)

All specifications apply to units mounted on PMA stock truck - MACK MRU 613 with .16H pump cell.
Weights are approximate and include pump, boom, truck, driver and some fuel. Varies with options selected.
Dimensions will vary with different truck makes, models and specifications.
Maximum theoretical values listed.
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Based on Model MACK MRU 613 with .16H pump cell
Length 35' 0" (10.67m)
Width 8' 2" (2.50m)
Height 12' 11" (3.93m)
Wheelbase 215" (5,461mm)
Front axle weight 19,600 lbs (8,900kg)
Rear axle weight 37,800 lbs (17,100kg)
Approx total weight 57,400 lbs (26,000kg)

All specifications apply to units mounted on PMA stock truck - MACK MRU 613 with .16H pump cell.
Weights are approximate and include pump, boom, truck, driver and some fuel. Varies with options selected.
Dimensions will vary with different truck makes, models and specifications.
Maximum theoretical values listed.
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Diagrams

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print

End hose not to be operated in caution area.
Photos and drawings are for illustrative purposes only.
Dimensions will vary with different truck makes, models and specifications.
For available options, please contact the factory.

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print

Photos and drawings are for illustrative purposes only.
Dimensions will vary with different truck makes, models and specifications.
For available options, please contact the factory.

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print

Photos and drawings are for illustrative purposes only.
Dimensions will vary with different truck makes, models and specifications.
For available options, please contact the factory.

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print

With One-Sidded Support (OSS) outriggers.
End hose not to be operated in caution area.
Photos and drawings are for illustrative purposes only.
Dimensions will vary with different truck makes, models and specifications.
For available options, please contact the factory.

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