5850 Gyratory Compactor

Product Features


The Model 5850 is Troxler’s newest Superpave™ Gyratory Compactor and the most advanced, easiest to use gyratory compactor on the market today. Completely redesigned with improved electronics, a hydraulic motor, and software-adjustable angle of gyration, the durable 5850 will consistently stand up to the rigors of any asphalt lab.

The lighter weight, smaller, portable, robust electronics, and quiet operation of the Model 5850 add to the list of the improved features the operator will enjoy when using Troxler’s newest gyratory compactor. As the paving industry evolves, count on Troxler to keep you up-to-date.


The Model 5850 provides you with the following advantages:

Completely redesigned to make your life easier! The Model 5850 is powered by a hydraulic motor, meaning fewer moving parts, less opportunity for wear and easier and less expensive service.


Simple Performance Tests can be done with the Model 5850 prepared samples. Compacted specimens as tall as 185 mm are easily produced, allowing owners to meet SPT requirements.

Don’t miss out on jobs requiring shear measurement capability! Shear measurement is an option on the Troxler Model 5850. Users may choose the shear option at the time of purchase or at a later date.


No more service calls to change angles. The easy-to-use software allows users to program internal and external angles as requirements change.


Do you need to move your gyratory to a different lab? The small footprint and reduced weight of the Model 5850 makes it easy to transport by unlocking the wheels and rolling it to a new location!


The Model 5850 was designed with safety and ergonomics in mind. Specially designed safety interlock switches keep all doors and panels closed while the machine is producing a sample. The 5850 was designed so that all work is performed by both the unit and the operator at one level. There is no awkward lifting to remove molds or pucks. Simply slide the mold out of the chamber and move onto the separate gravity extruder for easy extraction.


5850 Specifications

Power requirements

115 V ac (±10%), 60 Hz, 15 Amp


174 H x 78.7 D x 68 W cm
(68.5 H x 31 D x 26.75 W in.)


Approximately 227 kg (500 lb)

Consolidation Pressure

90 – 1000 kPa

Angle of Gyration

Adjustable from 0 to 1.5° Internal or External

Speed of Gyration

30 ±0.5 gyrations per minute

Number of Gyrations

Adjustable from 1 to 999

Mold Dimensions

150.0 mm ID x 317.5 mm height
(100 mm and 4 in. ID also available)
50.0 mm minimum specimen height
Maximum Mold Temperature 175° C

Modes of operation

Compact to specified number of gyrations or specimen height

Data acquisition

Gyration number
Specimen height (to nearest 0.1mm)
Angle of gyration
Shear value (optional)

Data output

USB and RS-232 ports to upload to printer, computer or removable drive

Unit of Measure

SI units

Internal Data Storage

Results from 20 tests stored in memory

Standard Accessories

Mold (1), Specimen Papers, USB Printer, Operator Manual, USB Cable, Gravity Extruder, Magnalube and applicator brush, Applicator Brush, Height Standard, Serial Cable, Power Cord

Optional Accessories

Extra Molds, Pressure Verification Kit, Power Transformer (International Customers)

Troxler also offers the Gyratory Shear Kit, a device developed by Dr. Hussain Bahia of the University of Wisconsin that turns any gyratory compactor into one with Shear Measurement capabilities.


One-year limited warranty