HJS Emission Technology - South Africa

11/06/2026

Almost one year since the implementation of the new Occupational Exposure Limit (OEL) for Diesel Particulate Matter (DPM) in South Africa, the focus in industry has shifted from awareness to measurable, sustained compliance.

DPM remains a serious airborne risk in diesel-powered mining and heavy-duty operations, with compliance now requiring proven emission control systems and reliable long-term performance in real operating conditions.

Read more about the new OEL and DPM here: https://discoveryalert.com.au/diesel-particulate-matter-risks-2025/

At HJS Emission Technology SA, we support operations in achieving sustainable compliance through advanced diesel emission control solutions designed for demanding environments, helping reduce exposure, improve safety, and ensure regulatory alignment.

If your operation is still working toward full compliance or looking to strengthen existing controls, we can assist with practical, proven solutions. Contact us today: [email protected] | www.hjs-sa.com

Clean Air is our Mission.

Discover South Africa's new occupational exposure limits for diesel particulate matter and how mines can achieve compliance by 2025.

09/06/2026

Trusted by Industry. Driven by Results.

Strong partnerships are built on trust, performance, and long-term support. We are honoured to work alongside some of the most respected names in the mining industry.

Our clients trust us to deliver proven emission control solutions, expert technical support, and reliable aftersales service that help keep their operations compliant, productive, and sustainable.
Thank you to our valued clients, partners, and stakeholders for your continued confidence in HJS SA!

Contact us to learn how emissions monitoring can support your emission reduction strategy: [email protected] | www.hjs-sa.com

Clean Air is our Mission.

05/06/2026

World Environment Day | 5 June 🌱🌍

At HJS Emission Technology SA, every day is an opportunity to make a positive impact on the environment.

As industries face increasing pressure to reduce emissions and improve sustainability, innovative exhaust aftertreatment technologies play a vital role in creating cleaner, healthier workplaces and communities.

Our solutions help mining, industrial, and off-road equipment operators significantly reduce Diesel Particulate Matter (DPM) and harmful exhaust emissions, supporting environmental responsibility without compromising productivity.

This World Environment Day, we reaffirm our commitment to cleaner air, sustainable operations, and a healthier future for generations to come.

Together, we can drive progress while protecting the environment. Want to learn how your operation can reduce emissions and ensure cleaner air? Contact us: [email protected] | www.hjs-sa.com

Clean Air is our Mission.

03/06/2026

Emission-Based Maintenance: More Than Compliance

What if your emissions could tell you when maintenance is needed before a breakdown occurs?

Emission-based maintenance uses exhaust emissions as an indicator of engine health, helping identify issues such as poor combustion, injector wear, and aftertreatment inefficiencies early. The result is improved reliability, reduced downtime, better fuel efficiency, and lower operating costs.

At HJS SA, we see emissions data as more than a compliance requirement; it's a powerful tool for smarter maintenance decisions and improved fleet performance.

Contact us to learn how emissions monitoring can support your maintenance strategy: [email protected] | www.hjs-sa.com

Clean Air is our Mission.

28/05/2026

DID YOU KNOW THURSDAY💡

The future of emissions reduction and DPM compliance in mining isn’t only about buying new equipment; it’s about smarter retrofit Diesel Particulate Filter (DPF) solutions.

HJS Exhaust Aftertreatment Systems can enable Tier 2 engines to achieve Stage 4/5 compliance levels, helping operations meet stricter emissions requirements with:
- Reduced downtime
- Lower capital investment
- Extended equipment lifespan
- Improved workplace air quality

Smart retrofits make compliance faster, more practical, and more cost-effective for mining operations. Read more about how retrofitting Tier 2 engines can transform your fleet: https://hjs-sa.com/news/retrofitting-tier-2-engines/

The retrofit and aftertreatment approach highlighted by HJS focuses on reducing harmful emissions while extending the life of existing equipment through modular retrofit systems. Contact us today to find the retrofit solution for your fleet: [email protected] | www.hjs-sa.com

Clean Air is our Mission.

26/05/2026

Another successful, professional installation completed by our team! 👏

Our latest project included the installation of a 10.2 m² SMF-CRT Partial Flow Radial Axial system on a CAT R1700, helping reduce Diesel Particulate Matter (DPM) emissions and supporting safer underground working environments.

HJS SA emission solutions are designed for demanding mining applications and deliver reliable performance, durability, and effective emission control where it matters most.

Looking to improve DPM reduction and emission compliance on your fleet? Contact us today to learn how we can support your fleet and site requirements: [email protected] | www.hjs-sa.com

Clean Air is our Mission

21/05/2026

Did You Know Thursday 💡

Not every machine has the space for a traditional DPF system, but that doesn’t mean emission control should be compromised.

HJS SMF® Block Filters provide flexible, compact DPF solutions for equipment with challenging space limitations, while still delivering reliable particulate reduction performance. At HJS SA, we help clients find the right solution for their specific engine applications and operating environments.

Contact us today to find the right DPF solution for your equipment and operating conditions: [email protected] | www.hjs-sa.com

Clean Air is our Mission.

19/05/2026

At HJS Emission Technology SA, we believe effective aftertreatment solutions go beyond simply supplying a DPF system. 👏

From complete system specification and expert installation to proactive monitoring, Emission Based Maintenance, technical support, and local skills development, we partner with our clients every step of the way to help create safer, cleaner, and more compliant operations.

Swipe through to see why more operations are choosing HJS SA as their preferred DPF supplier.

Contact us today to learn how we can support your fleet and site requirements: [email protected] | www.hjs-sa.com

Clean Air is our Mission.

14/05/2026

Did You Know Thursday 💡

Did you know that not every engine requires the same emission control solution?

At HJS South Africa, our advanced Partial Flow Diesel Particulate Filter (pDPF) systems use proven SMF® sintered metal technology to deliver effective emission reductions while maintaining lower exhaust backpressure.

Our PDPF systems are ideal for Tier 2, newer Tier 3 / Stage 3A, and smaller Tier 4 engines operating in demanding mining and industrial environments.
- Significant particulate emission reduction
- Reliable performance in harsh conditions
- Reduced exhaust back pressure
- Engine-friendly emission control solutions

Reliable emission control without compromising engine performance.

Contact HJS SA today to find the right emission control solution for your operation and help create a safer working environment: [email protected] | www.hjs-sa.com

12/05/2026

Another successful installation completed by the HJS Emission Technology SA Team!👏

Our latest SMF-CRT 6.5m² Axial-Radial system installation on a Fermel UV is designed to help reduce harmful Diesel Particulate Matter (DPM) emissions while supporting safer and cleaner underground operations.

At HJS SA, we remain committed to delivering high-quality, proven emission technology solutions that improve air quality, support compliance, and keep mining operations moving efficiently.

Looking to reduce DPM emissions and improve underground air quality on your fleet?
Contact us today to find the right emission solution for your operation: [email protected] | www.hjs-sa.com

Clean Air is our Mission.