BRITISH & METRIC FLUID CONVEYING PRODUCTS

Malone Specialty: Mecalac’s Introduces Versatile Compact Loader Line to North American Market

As reported by Construction Equipment Guide, Mecalac has unveiled its multifunctional compact loader line to cater to various industries, including agriculture, landscaping, forestry, snow removal, utilities, and construction. The line comprises six models, namely MCL2, MCL4, MCL4+, MCL6, MCL6+, and MCL8, all designed for exceptional versatility and agility.

Enhancing the machines’ adaptability, Mecalac introduces innovative hydraulic and maneuverability features, such as M-Drive and Speed Control. These options allow operators to control RPM through a hand throttle and regulate speed with a foot pedal, making the loaders highly precise for a wide range of hydraulic attachments.

Click here to learn more about Malone Specialty Hydraulic Hoses and Fittings

Photo and article with all rights reserved, courtesy of www.constructionequipmentguide.com

4 StepHydraulic Threadss to Identify 

Machines and equipment are designed and manufactured in every corner of the world. The hydraulic systems alone use countless different types of fittings and adapters with different sealing methods and thread forms. While the sealing method can often be distinguished by appearance, thread forms all seem to look the same, making it difficult and time consuming to identify them when equipment modifications or repairs are needed.

Knowing the correct thread is critical for selecting the right replacement parts for maintenance and repair. Selecting the wrong part can result in damage to the thread during installation, which compromises the pressure holding capacity and seal reliability of the fitting or adapter. Quickly and properly identifying threads can help maintain safe, productive, and profitable operations.

There are six types of threads commonly used on hydraulic tube fittings: UN/UNF, NPT/NPTF, BSPP (BSP, Parallel), BSPT (BSP, Tapered), Metric Parallel, and Metric Tapered. Four simple steps will help you identify them.

Step 1: Determine if the thread is tapered or parallel. NPT/NPTF and BSPT are tapered threads while UN/UNF and BSPP are parallel. Metric tapered and metric parallel speak for themselves. In some cases, step 1 can be accomplished by visual inspection alone. Tapered threads get smaller in diameter toward the end of the fitting while parallel threads maintain the same diameter from start to finish. If this is not obvious by looking at the fitting, use the parallel jaws of a caliper to make a comparison. Furthermore, the presence of an O-ring or the removal of a tube nut is usually an indication that the male thread is parallel. Completion of step 1 will eliminate three of the six possible thread forms.

Read more: 4 StepHydraulic Threadss to Identify 

Deere intros 333G compact track loader with integrated grade control, DozerMode

The 333G is Deere’s largest CTL. The 12,100-pound machine features a vertical-lift design, a 100-hp engine and 3,700 pounds of rated operating capacity.

The SmartGrade-equipped version of this model gives operators greater accuracy, enabling them to complete grading tasks faster and with fewer passes than machines without the feature, Deere says. Masts and cables are eliminated.

In addition, Deere has also launched DozerMode on this machine, which enables the electro-hydraulic joystick control system to function like a crawler dozer with the push of a button.

Deere says DozerMode is beneficial when operating the six-way dozer blade attachment, streamlining attachment needs and setup time since the blade does not require tools to change between attachments. In conjunction with SmartGrade technology, the blade reduces the amount of operator input and lowers operator fatigue.

“Integrating our innovative SmartGrade technology into the 333G Compact Track Loader provides our customers with a solution that is transportable, can fit into tighter spaces and will ultimately reduce labor costs,” Gregg Zupancic, product marketing manager, skid steers and compact track loaders.

Read more: Deere intros 333G compact track loader with integrated grade control, DozerMode

Hydraulic fluids: Controlling contamination in hydraulic fluids

Today’s manufacturing environments place great strain on production machinery. In the drive to maximise productivity, quality and throughput, users demand equipment that can generate ever larger forces with ever more precision. The elimination of process steps in sheet metal production, for example, calls for larger press tools and, in turn, more powerful presses. In mining and construction, higher equipment capacity is essential to minimise the time and labour costs in earth and spoil moving operations. Tighter tolerances and the desire to minimise or eliminate secondary finishing operations, meanwhile, require equipment that can operate with extreme precision.

Commercial demands serve to compound these challenges. Operators want machines that will operate faster to reduce part cycle times. They also want to maximise the overall availability of equipment, by running production lines for longer, by implementing rapid, automated changeovers between parts and by extending the intervals between maintenance interventions. Above all, they do not want unplanned downtime caused by equipment failure. With many operations involving multiple items of equipment, economic production requires every piece to run at extremely high levels of reliability.

Hydraulic technology remains a supremely effective way of generating large forces at acceptable speeds, using proven equipment that operates with high reliability under demanding conditions. Nevertheless, hydraulic technology can in some applications have certain important vulnerabilities. For example, during operation and maintenance, hydraulic fluid can pick up contamination in the form of dirt, water and wear particles. Over time, this contamination can cause severe damage to seals, pumps, cylinders, valves and other components, degrading performance and ultimately leading to catastrophic failure. Such failures are not only expensive to fix, they also have the potential to disrupt production cycles. In many modern production environments, the combination of extended operating periods and fast cycle times serves to increase the risk of hydraulic fluid contamination and damage, with industry estimates that over 85% of all hydraulic system failures can be attributed to fluid contamination.

Read more: Hydraulic fluids: Controlling contamination in hydraulic fluids

How to Identify Threads on Hydraulic Fitting

Using the correct thread is critical for proper mating and replacing hydraulic fittings. First and foremost, it is a safety issue. Correct assembly maintains pressure and reliably seals a fitting or adapter, making it safe for humans and equipment, not to mention the environment. It also prevents costly and time-wasting maintenance to cleanup and replace damaged parts.

Working engineers and designers, especially those in the fluid-power industry, are generally familiar with two groups of pipe threads: American pipe threads (NPT/NPTF, often referred to as SAE) and Unified threads (UN/UNF). But there seems to be an endless number of other unfamiliar threads, usually classified as “metric,” regardless of their actual form. In reality, there are true metric threads as well as BSP (British Standard Pipe) threads.

For identification purposes, hydraulic tube fittings and connectors are separated into six thread types:

  • UN/UNF
  • NPT/NPTF
  • BSPP (BSP, parallel)
  • BSPT (BSP, tapered)
  • Metric parallel
  • Metric tapered

Three of these are parallel (UN/UNF, BSPP, metric parallel) and three are tapered (NPT/NPTF, BSPT, metric tapered). Three are pipe threads (NPT/NPTF, BSPT, BSPP) and three are not (UN/UNF, metric parallel, metric tapered).

Read more: How to Identify Threads on Hydraulic Fitting

Hydraulic System Basics and Safety

Learning the basics is an important part of anything you do in life. Whether it is learning how to dribble the ball in basketball or learning how to do basic math problems in grade school, getting the basics down is extremely important, at least to me.

I often use the analogy with my kids of someone building a structure like a house. The builder has to have the foundation solidly constructed or the house will not stand correctly and/or it will also not be able to stand the test of time.

While I am sure they just LOVE this analogy, my point to them is to correctly learn the basics of math, English/reading, social studies and science now because everything they learn in the future will be built off of these basic academic principles.

The same holds true with things like hydraulic systems in farm machinery. Most of us have been around hydraulics for many years, but I wonder how many of us really understand how hydraulics work in the loader, combine or any implement you hook hoses to behind the tractor.

The components of a hydraulic system consist of a reservoir, pump, valves, fluid, motor, hose, filter and cylinder.

A hydraulic system uses compressed fluid to transfer force applied at one point to another point, according to an online fact sheet titled “Hydraulics 101 for Beginners” by the Tractor Supply Company (TSC). The hydraulic reservoir stores non-pressurized hydraulic fluid and this fluid travels through a filter that collects impurities.

Read more: Hydraulic System Basics and Safety

Excavation Innovation: Everything you need to know about the latest mid- to full-sized excavators

Bobcat’s largest excavator, the E145, was introduced in September. With 115 horsepower, the E145 is designed for heavier digging and lifting operations, such as commercial and residential building sites, underground utility work and road and bridge projects.

“The E145 nicely complements our 700- and 800-frame size compact track and skid steer loaders,” says Jason Boerger, marketing manager. “It’s also common for contractors to use a 14- to 16-ton excavator with smaller excavators on the same jobsite.”

The upper structure features a D-channel design. Wear plates at the attachment-connecting pins eliminate side play for extended service intervals at pin-up points. Every major pin joint on the arm and boom is cast, and reinforced cast-steel pin bosses provide extra strength.

Long-reach machine
Andrew Dagartz, product marketing manager, Case Construction Equipment, says the new CX350D “is our most fully featured, powerful and efficient long-reach machine to date.”

The Case Intelligent Hydraulic System balances hydraulic performance with demand and machine movement. Its electronically controlled pump, larger control valve and multiple sensors improve power, speed and accuracy. The system’s Boom Economy Control reduces engine speed during gravity-assisted functions, such as boom down and swing.

Read more: Excavation Innovation: Everything you need to know about the latest mid- to full-sized excavators

What are the types of hydraulic hose couplings and how they work

Hydraulic hose connector are connecting components between hydraulic hoses and hydraulic hoses, or between hoses and hydraulic components. Do you know how many types of hydraulic hose connector and how they work?

One end of the hydraulic hose connector is connected to the hydraulic hose (called the tail end), and the other end is connected to other components (terminals). In order to ensure compatibility and leak-free sealing with other components, the terminal of the hydraulic hose connector needs to follow a common interface standard When designing, the main function of the tail end is to ensure the long-term sealing of the connection between the joint and the hose.

The main types of hydraulic hose joints:
1. O-Ring Face Seal Hose Couplings

When the nut of the internal thread is screwed with the external thread, as the tightening torque increases, the hose joint plane and the end surface of the external thread of the Oring contact and are compressed, the O-ring is elastically deformed, and the end surface of the internal and external threads is fully Contact and generate pressure, play a sealing role.
Special attention should be paid during installation, and the sealing ring shall be checked before installation.

2. 24° cone sealing end hose connector

When the nut of the internal thread is screwed with the external thread, with the increase of the tightening torque, the outer cone surface of the hose connector and the inner cone surface of the outer thread are in contact and compressed, and the O-ring on the outer cone surface of the hose connector Produce elastic deformation, fully contact with the cone surface of the external thread and generate greater pressure, which plays a sealing role. Due to the leverage of the cone surface, the pressure between the cone surfaces is greater, and the sealing effect is theoretically better.

Read more: What are the types of hydraulic hose couplings and how they work

A “Dextreme” test for excavator hydraulic systems

Testing at quarry and washing facility

Ashcourt is testing the system on three 20-ton Volvo EC200 diesel-powered excavators. Two of the machines will be used at the company’s Partridge Hall Quarry in East Yorkshire. The third will operate at a nearby material washing facility. In the trial that began in February, each machine is forecast to complete 2000 operating hours over the next 12 months. To compare operating data with Ashcourt’s existing fleet of standard Volvo EC200 machines, each excavator has been fitted with data logging equipment.

“Our goal is to see how the Danfoss Dextreme-equipped machines perform in terms of productivity and fuel use in a tough quarrying and material moving environment,” said John Hood, Ashcourt Group plant director. “So far, the feedback from our operators has been uniformly positive. The fuel savings I can’t speak to yet, but my team is telling me the new machines are very responsive and strong, with the EC200 performing more like an EC250.”

A study by Danfoss Power Solutions revealed that excavators account for 50% of all carbon dioxide emissions generated by construction machinery. Around 90% of those emissions come from excavators of ten tons or more, which is why the Dextreme system solution is specifically targeted at the excavator market.

According to Danfoss, an excavator utilizing the Dextreme system will have a lower total cost of ownership than a standard diesel machine. For excavator owners more interested in reducing cycle times than reducing fuel consumption, Dextreme Swap can deliver up to 25% higher productivity.

Read more: A “Dextreme” test for excavator hydraulic systems

What you need to know about hydraulic fittings

Every machine user and maintainer will experience a burst or leaking oil line, so have a call for a professional service person to drive to the job site, press a new one on site next to the excavator and put the new one right on, and you’ll have a quick fix! This does work! But it’s expensive!

If you don’t know about hydraulic hose fittings then you don’t know which one to choose. So the only option is an expensive on site service!

This article will share with you some knowledge of hose fittings that will hopefully save you some money in the future.

It is well known that threaded joints generally require internal and external threads to be used together.

If two threaded joints are to be screwed together for the purpose of connection, the thread types must match and the sealing surfaces must match.

First of all, let’s get to know the BSP connectors, which are basically the standard for all the accessories (various devices) such as breakers.The B in BSP is British, which is the British Standard.

When we say BSP fitting, it defines the threads and sealing surfaces.
Once the BSP thread size has been determined, it defines the thread diameter size, and the thread pitch.

With BSP, the sealing surface is an external taper. The taper angle of the BSP is 60 degrees.

Read more: What you need to know about hydraulic fittings

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