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We can design and produce almost any seal profile, in a full range of approved materials and will advise you on the best seal and material for the job at hand. Our state-of-the-art machines use the latest computerized technology to produce standard, threaded, and custom-shaped profiles. We manufacture in both imperial and metric sizes, using high-quality materials that conform to all current worldwide industry standards, at a reasonable cost, and with a fast turnaround time.
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Seal kits are used to close gaps between components in hydraulic cylinders. This is essential because the seals are responsible for maintaining hydraulic pressure and preventing the oil from becoming contaminated. What signs should I be looking for ? Hydraulic cylinder seal kits are essential when you suddenly encounter an unforeseen failure. Some seal failures are easy to spot, such as oil leaking from around the cylinder, while others are more challenging. A drop in hydraulic pressure, an overheated cylinder, loud clunking or banging noises, and higher-than-normal shaking and vibration are all signs you need to inspect your cylinder. Other potential signs of seal failure include: • Excessive Wear: Excessive wear is often caused by inadequate or improper lubrication and can eventually lead to tearing and discoloring of the seal. • Seal Hardening: Hydraulic cylinders operating in high-temperature conditions can experience seal hardening, eventually leading to cracks, tears, and rips. • Improper Installation: One common mistake during seal replacement is measuring the seal instead of the groove where the seal is placed. Using the wrong seal size can lead to oil leaks, contamination, or a drop in pressure that can affect the cylinder’s performance. • Contamination: Dirt, debris, sludge, mud, and other elements can build up in the cylinder and seal. If not taken care of, the problem will continue to worsen until these contaminants reach the piston and affect the cylinder’s operation. • Seal Fracture: Sudden impacts, shocks, or low-quality seals can lead to the seal fracturing (breaking), tearing, or ripping. How do I know what seals to order ? At MACS, we have thousands of seals already in kit format. By using the make, model and serial number of your machine, you should be able to identify the correct seal kit. Sometimes, there can be more than one seal kit for your machine because the original manufacturer have used different rams during the years of manufacture of the machine. In this case, you should always check the following : Piston rod diametre Bore diametre OEM seal kit part number We can also provide seals by size. Provide our team with a photo of the seal and the dimensions of the seal. Use our seal measurement guide BLOG to help you. How to measure my seals 1. First identify your seal profile By looking at the cross section of a seal and match it against a seal profile chart. Download our seal profile catalogue here. *** A voir avec Alexia pour le faire en MACS*** 2. Measure the seal's Outer Diameter (OD), Inner Diameter (ID), width and height Often the dimensions are printed on the seal. If not, you can measure the seal using either a ruler, verniers or calipers. Take multiple measurements around the seal when measuring diameters, in order to apply an average measurement. 3. Measuring multi part seals Measure the OD, ID and width of the seal. 4. Measuring Bearing Rings When measuring Bearing Rings, take measurements including the gap. 5. Measuring O-Rings For O-Rings, measure the section using either a ruler, calipers or verniers. Always measure an O-Ring from it's internal sides. Alternatively, you can measure an O-Ring using a measuring cone. All measurements can be cross-referenced with an O-Ring chart. 6. Ordering replacement seals Having the correct measurements can make ordering replacement seals easier. If you are still unsure, our knowledgeable team are always on hand to help you out.
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What are the different links found on a mini digger ? The bucket links connect the lower bucket arm ram to the bucket or quick hitch on a machine. These are sometimes called a H link due to their shape. In the majority of cases, they are supplied in one solid part, however, there are some machines that have two seperate links. Bucket links can be either straight or curved and are designed for the correct working angles of the machine. MACS bucket links are always provided with the bushes (at positions 10 and 11) and grease seals (if they are found on the machine originally). If you can’t find your bucket link on the website, don’t worry ! With dimensions, we can manufacture your bucket link for you. Ask our team for the simple proforma drawing so that we can give you a quote. The tipping links which are also known as side links or banana links are used to pivot the bucket. The two tipping links are found on either side of the arm between the bucket arm of the machine and the bucket ram (positions 8 & 10). In some circustances, the pins are welding to one of the tipping links. If you can’t find your tipping links on the website, don’t worry ! With dimensions, we can manufacture your tipping link for you. Ask our team for the simple proforma drawing so that we can give you a quote. Regularly check your bucket and tipping links for play. Due to the large amount of use, the bucket area suffers most from wear. When the links are at the end of their life, change them before they twist or break to avoid irrepairable damage to the arm of your machine. Pins and bushes should be changed at the same time as the links. Macs offers handy kits that available for this purpose.
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We don't talk much about them, but these small parts are just as important for the well-being of your machines! Machine maintenance is one of the most important aspects of owning an excavator. There are pins and bushes in every joint of an excavator arm. These are wear parts and although they are designed to reduce friction to a minimum, the pin is designed to rotate in the bushing, which will cause wear. This wear can be reduced by regularly greasing each joint and replacing worn parts at regular intervals. If these parts are not replaced regularly, irreparable damage will occur in the arm and pivot of the machine. This could lead to major, dangerous and costly breakdowns.
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Zoom🔎 in on the MACS range of handling thumbs! In hydraulic or mechanical version, MACS handling thumbs can solve many manual work problems on site. It's a highly cost-effective product that will make your machine versatile 👌
Find out what part you need for your excavator