DIESEL PLANT BUYING EXPERTISE
Genuine machinery purchasing advice from engineers who have pulled these machines apart, rebuilt their engines, repaired their hydraulics, and tested their outputs on a dynamometer. Technical guidance grounded in hands-on diesel plant expertise — not sales commission.

MACHINERY PURCHASING ADVICE GAUTENG
Gauteng is the economic heartbeat of South Africa. Infrastructure development, road construction, mining support, and civil earthworks are accelerating across the province. In this environment, buying the wrong machine — whether new or used — is a risk serious fleet owners and project managers simply cannot afford.
The used plant market in Gauteng is active and varied. Some machines represent genuine value. Others carry hidden mechanical problems that only become apparent after purchase, when repair bills start arriving. Load shedding and infrastructure pressures have also increased the mechanical stress placed on diesel plant — machines that have been worked harder than their service records suggest, or had quick-fix repairs applied to keep them running, may appear functional but carry serious underlying faults.
A diesel engine overhaul on a major piece of plant can run from R40 000 to well over R150 000. A hydraulic rebuild or turbocharger replacement adds further costs. Against those figures, the cost of a professional pre-purchase inspection is a straightforward investment in risk reduction.
OUR ADVISORY SERVICE
A thorough pre-purchase inspection before you commit to any significant plant investment. Our team assesses: engine condition and service history, hydraulic system integrity, transmission and drivetrain components, turbocharger condition, injector pump and fuel system, structural and undercarriage condition for tracked plant, and any signs of previous repairs that may mask deeper problems. Detailed, technical, and free of any vested interest in the sale proceeding.
Where a machine claims to be in good working order, a dynamometer test provides objective confirmation — or reveals the truth if the claim does not hold up. CMKT can arrange engine dynamometer testing as part of a pre-purchase assessment to verify power output and performance against manufacturer specifications.
Beyond mechanical condition, CMKT advises on whether a specific machine type is the right fit for the application you have in mind. When you describe your project requirements, operating environment, and cycle requirements, our team advises on which specifications and configurations will serve you best — and flags machines that are undersized, oversized, or poorly matched regardless of how attractive their price appears.
Purchase price is only one number. CMKT helps buyers look beyond the sticker price to understand the true cost of ownership — likely service intervals and parts availability, cost and availability of hydraulic components, whether turbocharger or injector pump reconditioning is likely in the near term, and the overall reliability record of the make and model under Gauteng's operating conditions.
ENGINE EXPERTISE ACROSS ALL MAJOR BRANDS
When you bring us a machine fitted with any of these engines, you are not dealing with an advisor who needs to look up the specifications. You are dealing with engineers who have rebuilt these engines from the ground up.
EQUIPMENT WE ASSESS
Excavators are among the most frequently traded pieces of plant in Gauteng, and among the most frequently misrepresented. Hydraulic systems topped up rather than repaired, slew rings showing early wear, engines serviced with the wrong oil grades — our team is trained to identify all of it. We apply the same scrutiny to TLBs, front loaders, dozers, bulldozers, bobcats, and graders.
Rollers and compactors accumulate significant operating hours quickly, and their vibration systems and drive components are subject to specific wear patterns requiring knowledgeable assessment. Crushers require attention to drive assemblies, wear components, and the diesel engines that power them. Water trucks require inspection of pump condition, tank integrity, and chassis stress from constant load cycling.
Tipper trucks operating in Gauteng — particularly 10-cubic tippers on construction and mining sites — are subject to demanding duty cycles that place stress on engines, transmissions, and chassis components. Our diesel engine expertise, including familiarity with Tata 3434 Novas and Cummins 6BT engines, means we assess these vehicles with the same technical depth we apply to earthmoving plant.
HOW IT WORKS
Contact CMKT on 074 578 3032 and describe the machine or machines you are considering, the application and operating context, and your budget parameters. This helps our team understand what you need and determine what level of inspection and advisory input is appropriate.
Where a physical inspection is required, our team will assess the equipment — covering mechanical, hydraulic, structural, and operational condition. We document our findings clearly so you have a written technical basis for your purchasing decision or negotiation.
CMKT provides a clear assessment of the machine's condition, an estimate of any remedial work required and what it would cost, and a recommendation on whether the machine represents fair value, should be negotiated down, or should be avoided. Honest, technically grounded advice — not a formality designed to validate a decision already made.
If you proceed, CMKT is positioned to support your new acquisition from day one — initial service, maintenance programme, field breakdown response, and any overhaul work identified during the pre-purchase inspection. Continuity that single-transaction advisors cannot match.
WHO WE HELP
Buying the wrong excavator or TLB can derail a project timeline and expose the company to delay penalties and reputation damage. CMKT gives procurement decision-makers the technical backing to buy with confidence.
Plant hire operators regularly face decisions about adding capacity or replacing worn-out machines. Each involves assessing machines that may have been operated hard, maintained inconsistently, or repaired with varying quality. CMKT provides inspection and advisory support to make those decisions with clear technical evidence.
Mining support operations work their plant harder and for longer hours than most other applications. The cost of unplanned downtime at a mine face is immediate and substantial. Before committing to replacement plant, these operations benefit enormously from a thorough used plant machinery inspection.
Entrepreneurs entering the construction or plant hire market for the first time, investing capital they cannot afford to lose. Access to diesel plant buying consultant expertise from CMKT can be the difference between a launch that gains traction and one that stalls under the weight of unexpected repair costs.
WHAT CLIENTS SAY
Our Cummins QSL9 on a SANY excavator seized up mid-project on a site in Gauteng. CMKT had it overhauled and back on the dynamometer within two weeks. The written report showed the engine performing to specification. We put it back into service with full confidence.
What impressed me most was that they offered us a replacement TLB while our machine was in for a full engine overhaul. No downtime on our roadworks contract. The machine came back fully tested and has given us no trouble since. Proper professionals.
We needed a 10 ton roller and a tipper truck for a roadworks contract in Limpopo and could not afford downtime on either unit. CMKT sorted both engine issues, tested the rebuilt units, and provided written reports before handover. We completed the contract on schedule.
We are based in Gauteng and provide pre-purchase inspection and advisory services across South Africa. If the machine is in Gauteng or accessible within South Africa, we can get our team to it.
Based outside these areas? WhatsApp us on +27 74 578 3032 and we will find a plan that works for you.
COMMON QUESTIONS
Yes. Our pre-purchase inspection service is not limited to machines brought to our workshop. Where feasible, our team can attend the location where the machine is held to carry out the assessment. Contact us with the machine details and location and we will confirm what is possible.
Our advisory service is most frequently sought for used plant purchases, where the risk of hidden mechanical problems is highest. We can also provide guidance on new equipment specifications, brand selection, and application fit — particularly for buyers choosing between different makes and models for a specific operating context.
The duration depends on the machine type and the scope of the assessment required. A standard inspection of a TLB or excavator can typically be completed in a few hours. Larger or more complex machines, or assessments that include dynamometer testing, will take longer. We discuss expected timelines during the initial consultation.
We provide you with a clear, written report of our findings and an estimate of the cost of any remedial work required. You then decide how to proceed — whether to renegotiate the purchase price to account for the required repairs, withdraw from the transaction, or proceed with full awareness of what the machine needs. The decision is always yours; our role is to make sure you have the technical facts to make it properly.
Our core advisory service is assessment and inspection of machines you have identified. We do not operate as a broker or dealer. However, because we work across the Gauteng plant market and have broad industry relationships, we sometimes become aware of machines that may suit a buyer's requirements. If you describe what you are looking for, we are happy to let you know if anything relevant comes to our attention.
Do not commit to a significant plant investment without expert eyes on the machine. Contact CMKT Engineering and Projects for pre-purchase inspection and machinery purchasing advice backed by genuine diesel plant expertise.
CONTACT US
Describe the machine you are considering and we will advise on the right level of assessment for your decision.
CMKT Engineering and Projects is a South African heavy duty engineering business based in Gauteng. Diesel engine overhauls, hydraulic repairs, turbocharger reconditioning, field breakdown response, and plant hire across all nine provinces.