From installation to inspection, we provide everything you need to secure unmanned access points and stay compliant with mining regulations.
Hidden risks like borehole instability, groundwater migration, and inadequate sealing practices don’t just interrupt work — they erode profitability. With advanced diagnostics and engineered occlusion solutions, mines can plug these financial drains before they escalate.
Every open borehole is an entry point for thieves targeting your cables, explosives, and PDS components.
One compliance failure can shut down your entire operation. Are your boreholes properly secured?
How do you keep emergency access available while preventing theft and illegal entry? Until now, you couldn't.
An unsecured borehole doesn't just cost money — it can cost lives.
The Borehole Occluding Device (BOD) is a patent-pending security system manufactured from 304 stainless steel, specifically engineered for the demanding conditions of South African mining operations. Featuring friction pads lined with ceramic and carbon compound, our unique design prevents unauthorised removal while maintaining full ventilation capability.
The BOD gives you what no other solution can: complete borehole security that doesn't compromise ventilation or emergency access. It reduces theft, ensures compliance, and requires maintenance only every three months. One device, installed once, protecting your assets around the clock.
The BOD is a stainless steel security device that locks into your borehole, prevents unauthorised access, and allows air to flow freely. It's simple to install, impossible to remove without our proprietary tools, and built to last.
Traditional borehole covers fail. Cages rust. Padlocks get cut. That's why we developed the BOD — a friction-lock device that grips the inside of your casing with over 700kg of holding force. It cannot be removed from above without our specialised tool, making it virtually theft-proof.
Corrosion-resistant durability that withstands harsh underground environments for years.
Corrosion-resistant durability that withstands harsh underground environments for years.
Without our proprietary tool, removal is impossible. Your boreholes stay secure 24/7.
Without our proprietary tool, removal is impossible. Your boreholes stay secure 24/7.
One solution for every borehole on your site — refuge bays, vent shafts, exploration holes.
One solution for every borehole on your site — refuge bays, vent shafts, exploration holes.
Low maintenance means lower operational costs and less disruption to your workflow.
Low maintenance means lower operational costs and less disruption to your workflow.
Complete traceability for compliance audits and inspection records.
Complete traceability for compliance audits and inspection records.
Field-tested to prove it doesn't block airflow. Refuge bays stay ventilated, workers stay safe
Field-tested to prove it doesn't block airflow. Refuge bays stay ventilated, workers stay safe
Our Borehole Occluding Device (BOD) is engineered to deliver a secure, durable, and highly efficient solution for the permanent or temporary sealing of boreholes across a wide range of industries. Designed to perform in demanding subsurface environments, the BOD effectively prevents unwanted fluid migration, pressure loss, and structural instability.
Built using robust, high-quality materials, the device withstands extreme underground conditions including variable pressures, groundwater exposure, and long-term operational stress.
Maximum tested pull resistance
Airflow increase with auxiliary fan
Negative impact on barometric pressure
Size range available
We are multidisciplinary construction group delivering complex civil, mining and industrial infrastructure across South Africa with full turnkey capability and single-point accountability. As one of the country’s fastest‑growing construction companies, the team combines CIDB 8‑grade capacity with specialist disciplines such as geotechnical works, drilling, tailings management, roads, water, concrete, mechanical and electrical installations.
From safety systems to multidisciplinary delivery—your answers here.
The BOD uses friction pads lined with ceramic and carbon compound that grip the inside of your borehole casing. Load tests show holding force exceeding 784kg. The device can only be released using our proprietary tool.
Yes. The BOD has undergone liquid penetrant testing by SSASI to ISO 9712:2021 standards, load testing with calibrated equipment, and extensive field testing at Kangra Coal. It is patent pending (2025/06342).
We recommend maintenance every three months, or more frequently in harsh environments. Each device has a unique serial number for easy tracking.
The BOD is manufactured in sizes ranging from 6″ to 32″, covering virtually all borehole applications.
No. Our field tests at Kangra Coal demonstrated that the BOD does not negatively impact ventilation. With auxiliary fan systems, airflow improved by up to 37.8%.
The BOD is constructed from 304 stainless steel for standard mining environments. For harsher conditions, we offer 316 stainless steel.
Absolutely. We provide the specialised installation tool and hook, along with guidance on proper installation procedures.
