Cold Recycler IoT: How to Monitor Pavement Recycling Operations?
Cold recyclers (cold recycling equipment) are the core machines for in-place cold recycling of asphalt pavement. They mill and crush the old asphalt, add rejuvenators (emulsion, cement, water), and re-blend it in place into a new base layer — saving large amounts of new material and haulage cost while shortening schedules dramatically. But recycling quality depends on process parameters: recycling depth, working speed, milling volume, water/binder ratio, and cumulative hours. Any of these drifting out of spec produces a sub-standard base, and rework is extremely costly. Traditional oversight only verifies results by post-hoc core sampling; during the work, "is the recycler doing it right?" is invisible. This guide breaks down how JGY brings recycling process parameters under real-time monitoring with a cold recycler IoT solution.
Four Pain Points in Cold Recycling
- Recycling depth is hard to monitor: Depth determines base thickness and strength; traditional methods rely on operator eyeballing or manual adjustment, so deviations go unnoticed.
- Unstable working speed: Too fast means incomplete recycling; too slow means low efficiency and possible over-milling — with no record of the process.
- Milling volume and mix ratio can't be traced: Milling depth × width × speed defines volume per area, and the water/emulsion/cement ratio drives quality — without process parameters, quality can't be replayed.
- Hours and billing are unclear: In rental or contracting, working hours, transfer, and standby blur together into settlement disputes.
Cold recycling is a one-shot job. Without recorded process parameters, a failed core sample can't be traced back to the section or parameter that caused it.
Hardware: T-BOX Condition + Depth Capture + Positioning
The JGY solution centers on the T-BOX (YOOAI-GC-DT-CTF enhanced / YOOAI-GC-DT-CAN standard), paired with depth capture:
- Multi-constellation GNSS: GPS + BeiDou + GLONASS + GALILEO records the recycling track in real time — stationing/section at a glance.
- CAN bus access: Reads engine RPM, hydraulic status, travel speed, rotor RPM, water/oil temperature and pressure, and fault codes (DTC).
- Recycling depth capture: Reads milling-rotor cut depth via CAN or an external depth sensor — recording the actual recycling depth of every section in real time.
- Working speed: From GNSS speed and CAN travel speed, recording per-section speed to flag too-fast/too-slow passes.
- Relay output + FOTA: Remote lock and remote firmware upgrade supported.
- Industrial wide-voltage: 9
36V, -20℃+70℃, ESD and surge protection for the dust and vibration of road work.
One line on core capability: 4G + CAN + GNSS + relay + FOTA — capturing every recycling process parameter in one shot.
Platform: From Process Parameters to Operation Reports
1. Real-Time Condition and Track
The device management module shows per-machine real-time position, work track, recycling depth, working speed, and hours. Crews see on the map which section the recycler is working and whether depth and speed stay within the process spec.
2. Recycling Quality Traceback
The platform maps recycling depth, working speed, and milling volume (depth × width × speed) onto the track by stationing/section:
- Depth curve: Which section missed spec — when a core sample fails, locate the problem section in one click.
- Speed curve: Flag too-fast sections (incomplete recycling risk) and too-slow sections (low efficiency / over-milling risk).
- Quality report: Auto-generated recycling operation reports per section as process evidence for handover acceptance, reducing disputes.
3. Hours and Billing
For rental or contracting, the rental management module auto-aggregates working hours from T-BOX condition data (separating work/idle/transfer/standby) — settlement rests on evidence. With contract → entry/exit → reconciliation → settlement fully online, the financial loop is clean.
4. Maintenance and Fault Work Orders
CAN fault codes upload in real time; alerts convert to work orders, dispatch, and closed-loop tracking. The maintenance module auto-reminds on service intervals by working hours (rotor tool replacement, hydraulic service), cutting downtime risk.
5. Remote Lock for Risk Control
On lease expiry or default, the platform issues a lock command and the T-BOX relay cuts the starter circuit — every action logged.
Typical Scenarios
| Scenario | Core Need | Solution Focus |
|---|---|---|
| Highway heavy/medium in-place cold recycling | Depth, speed, quality replay | T-BOX + depth capture + section reports |
| Municipal road base recycling | Station-level operation reports | Track + depth + operation reports |
| Cold recycler rental | Hour billing, risk control | Condition hours + remote lock |
| Plant-mix cold recycling plants | Condition, maintenance | CAN condition + maintenance work orders |
Who It's For
- Dedicated cold recycler lessors (billed by hours/area)
- Highway maintenance and heavy/medium-repair contractors (process quality control)
- Cold recycler OEMs (intelligent-operation selling point)
- Municipal road repair units (base recycling operations)
The endgame of cold recycling is "process parameters fully recorded, quality traceable, cost clear." To build an operation-monitoring solution for your cold recycler business, contact us.