Built for the Job: Why Segregator Buckets and Screening Drums Work for Every Civil Project
Most excavator attachments are built for one job. A pulveriser for demolition, a grab for recycling, a standard bucket for digging. But two attachments in Rotar's range were purpose-built for the problems that keep coming up on civil sites and they've been proving themselves on road and civil projects for decades.
The Rotar HPL/HEX Screening Drum and the Rotar EVB/RVB Segregator Bucket both trace their origins back to road construction. Not adapted for it after the fact, actually designed for it. Here's what each one does on site, and where they work best together.
Rotar HPL/HEX Screening Drum: Aggregate Control On-Site
The Screening Drum started on a road job. A Dutch road builder needed a faster way to clean paving stones for reuse, and the idea he came up with, a rotating drum that separates material by size while washing away fines, became the foundation for one of the most versatile civil site attachments going.
On a road or civil job it handles:
Screening reclaimed aggregate to grade for subbase prep
Washing pavers clean and ready for reinstatement
Pulling fines and soil out of crushed or mixed construction spoil
Separating topsoil from rock and rubble during site clearance
Blending and cultivating materials to a consistent mix
The EVO operating system was built around a real problem: high-throughput attachments that rely on electrical controls add complexity and failure points at exactly the wrong moment.
Rotar's response was to remove electrical operation entirely. The drum runs off two hydraulic hoses connected to your machine's existing circuit, controlled by a bi-directional joystick or foot pedal, and processes large volumes continuously without additional setup or power sources. The exchangeable screen mesh system allows for the change of the separation grade on site to match the material rather than swapping the attachment off the machine to sort different sized materials.
HEX series for excavators, HPL series for wheel loaders. Drum capacities run from 800L to 3000L, covering machine classes from 15t to 35t.
More details: Rotar HPL/HEX Screening Drum
Rotar EVB/RVB Segregator Bucket: Paving Recovery and Site Sorting
The Segregator Bucket came from a similar origin story. Road crews needed a way to strip sand and mud from paving stones so they could be reused on the job rather than carted off to landfill. The solution was a skeleton bucket with an eccentric shaft that runs at high frequency, shaking fines through the bar spacings while the oversize material stays inside the bucket. Simple in concept, seriously effective in practice.
On a civil or road project, the Rotar Segregator Bucket is primarily used for:
Picking up and cleaning pavers for immediate reuse on site
Sorting rubble and spoil on road upgrades and rehab jobs
Sieving soil from aggregate for reuse or crusher feed
General site clearance on construction and demolition jobs
Breaking out edge material with optional replaceable bucket teeth
The hydraulic system is built to handle the pressure spikes and heavy cycle rates that come with civil project demands. Standard bar spacing is 42mm, with an 80mm option on the EVB 1200I when a coarser separation application is required.
EVB series for excavators, RVB series for wheel loaders, covering machine classes from 4.5t to 35t.
More details: Rotar EVB/RVB Segregator Bucket
Where Both Attachments Work Together
Take a road upgrade or pavement rehab job. The Segregator Bucket works first, picking up the existing pavers and shaking off the bedding sand, leaving clean stones ready to go back down. The Screening Drum then processes the dug-out material, grades the aggregate to subbase spec, and removes fines and oversized pieces. Two attachments, one sequence, and you've recovered road-ready material that would otherwise cost money to remove and replace.
Less going off site means fewer skip movements and less spend on bought-in aggregate. On a job where margins are tight, that adds up. Both attachments run off standard hydraulics and do not require special circuits or additional site resourcing.
Available Nationally Across Australia
Coast 2 Coast Attachments supplies both the Rotar HPL/HEX Screening Drum and the EVB/RVB Segregator Bucket nationally across Australia, for excavators and wheel loaders across the full range of machine classes.
Working out what suits your machine and your job? Get in touch with the team at C2CA.
Luke Preston | 0409 649 710 | luke@c2ca.com.au