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Monday 07:00 - 16:30 Tuesday 07:00 - 16:30 Wednesday 07:00 - 16:30 Thursday 07:00 - 16:30 Friday 07:00 - 13:00

National Chains

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National Chains

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Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from National Chains, Engineering service, 224 Vonkprop Street, Pretoria.

Manufacturers and Suppliers of the following type of Chains: Agricultural, Asphalt, Automotive, Cement, Conveyor, Forged Link, Grain Milling Material Handling, Mining, Steels Mills, Sugar Mills, Timber Industry, Welded Steel Chains and also Buckets and Sp

04/11/2026

Your voice matters! Democracy gives us the freedom to shape our future and make a difference. Don't take this privilege for granted, get out there, make your mark and cast your vote!

03/11/2026

As the year draws to a close, now is the time for operations to plan their year-end maintenance and shutdown schedules.

A proactive approach can help minimise unplanned downtime, prevent avoidable delays and ensure a smoother start to the new operating year.

Industrial chains operate under demanding conditions in heavy-duty applications.

Regular inspections can help identify potential problems early, support maintenance planning and reduce the risk of unexpected equipment downtime.

Things to Check When Inspecting Industrial Chains

1. Wear and Elongation

Check for signs of wear on chain pins, bushes, rollers and other relevant contact surfaces. In many chain designs, wear at the pin-and-bush joints can cause the chain to elongate over time.

Excessive elongation may affect chain engagement with sprockets and compromise equipment performance. Compare inspection findings with the manufacturer's specified wear limits.

2. Damaged or Cracked Components

Look for cracked, bent, broken or visibly deformed links, plates, pins, rollers and attachments, as applicable to the chain design.

Damaged components may compromise chain integrity and require further assessment. Follow the manufacturer's recommendations for inspection and replacement.

3. Lubrication and Corrosion

Check whether the chain is receiving the correct lubrication for its design and operating conditions. Inadequate lubrication can increase friction and wear, while unsuitable lubricants may not provide the required protection.

Also inspect for rust, corrosion or pitting, particularly in environments exposed to moisture, chemicals or abrasive materials.

4. Sprocket Condition and Chain Engagement

The condition of the sprockets is just as important as the condition of the chain. Inspect for worn, damaged or irregular sprocket teeth and check for signs of poor chain engagement.

Worn sprockets can contribute to accelerated chain wear and may affect the performance of the drive system. Assess the chain and sprockets together when planning maintenance.

5. Alignment, Tension and Operating Conditions

Check for signs of misalignment, uneven wear, excessive slack or incorrect tension, where applicable to the equipment.

Also consider unusual noise, vibration, movement or operating behaviour. These may indicate an underlying problem that requires further investigation.

Always follow the equipment manufacturer's specifications for alignment, tension and adjustment.

Plan Ahead for Your Year-End Maintenance

Identifying potential chain problems early gives your maintenance team more time to assess replacement requirements, confirm technical specifications and plan orders before a scheduled shutdown.

02/11/2026

Keeping Industry Moving for 28 Years!

Behind every strong operation is a chain you can rely on. For 28 years, National Chains has been manufacturing industrial chain solutions for the mining, milling and other industrial sectors.

Built on experience. Driven by quality. Committed to strength and reliability.

National Chains – 28 Years of Strength. Built on Trust.

26/10/2026

Tongaat Hulett has delisted from the JSE, a move that's part of its business rescue plan. It's a big step as they work to sell off parts of the company and navigate the tough times facing South Africa's sugar industry.

Keeping mills running smoothly and having reliable parts is more important than ever.

Read the full article: https://www.farmersweekly.co.za/agri-news/south-africa/tongaat-hulett-delisting-marks-progress-in-business-rescue/

21/10/2026

Eastern Cape Farmers: Get Ready for 2027/28 Support

Calling all emerging farmers in the Eastern Cape! The provincial Department of Agriculture's Farmer Support Programme for 2027/28 is open for applications. You have until 30 October 2026 to get your submission in, so start preparing now!

Read the full article: https://www.farmersweekly.co.za/agri-news/south-africa/eastern-cape-emerging-farmers-urged-to-apply-for-2027-28-support/

19/10/2026

Cartoon Candy grabs Beyers’ chocolate gear

The Germiston confectioner Cartoon Candy has bought Beyers’ chocolate-making equipment out of liquidation.
It gives them a first foothold in chocolate and a possible shot at Woolworths shelves.
For any plant, that means fresh conveyors and drives that need reliable parts to keep running.

Read the full article: https://www.packagingmag.co.za/acquisitions-evolutions/first-to-trend/

13/10/2026

Let's talk about the sugar tax and our cane farmers

SA Canegrowers say scrapping the sugar tax could save over a million jobs that depend on sugar farming and milling. They point to lower harvests, more foreign sugar flooding the market, and mills closing as reasons the industry needs help now. A tax break, they believe, would keep more cane in the ground and more people employed.

Read the full article: https://www.foodformzansi.co.za/scrap-sugar-tax-to-save-farmers-and-jobs-sa-canegrowers-plead/

12/10/2026

Update on the soya bean location differential case

The court has postponed Grain SA’s legal challenge against the JSE over soya bean location differentials, moving the interdict hearing to 6 November 2026. For farmers and processors, those differentials still decide which delivery points get premiums or penalties.

That impacts how beans flow through conveyors, elevators and storage, which in turn affects wear on chains and drives.

Read the full article: https://www.farmersweekly.co.za/agri-news/south-africa/grain-sas-jse-soya-bean-location-differential-hearing-postponed/

08/10/2026

Zimbabwe’s lithium sales skyrocket

Lithium export earnings hit $2.16 billion in the first nine months of the year, nearly four times last year’s total. The Minerals Marketing Corporation of Zimbabwe says a 283 % spike in spodumene concentrate prices drove the jump.

Read the full article: https://www.miningweekly.com/article/mining-industry-commits-to-invest-more-in-combating-gbv-in-south-africa-dunne-2026-10-08

07/10/2026

What 1.1% food inflation really means for your grocery bill

Food prices are barely ticking up at 1.1% a year, but putting a nutritious meal on the table still eats up more than half the paycheck for many families. Farmers are feeling the squeeze too, wondering if they can keep growing crops profitably. Reliable machinery and easy access to spare parts become even more important when every rand counts.

Read the full article: https://www.farmersweekly.co.za/agri-news/south-africa/cheap-on-paper-costly-at-the-till-what-11-food-inflation-really-means/

Address

224 Vonkprop Street
Pretoria
0102

Opening Hours

Monday	07:00 - 16:30
Tuesday	07:00 - 16:30
Wednesday	07:00 - 16:30
Thursday	07:00 - 16:30
Friday	07:00 - 13:00

Website

http://www.nationalchains.co.za/

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