MRO Stop Blog

Electrical Equipment

MRO Stop has all of your electrical equipment needs.   We supply high quality electrical industrial components from the most trusted brands in the industry at competitive prices.  Whether you need purchase new electrical equipment to have as a spare backup part or if your operations are down and you need the part immediately, MRO Stop can help.

HMI (Human Machine Interface)

When it comes to process visualization, MRO Stop has the best selection around. Whether you are looking to replace a HMI for your process equipment or buying for a new installation, count on us to have a variety of human machine interface screen sizes, software, cables and accessories.

PLC (Programmable Logic Controller)

Mitsubishi's PLC line is one of the widest in the industry. Mitsubishi's offering spans from our Alpha PLC with as little as six I/O points, all the way to the high-end Q Series PLC capable of running entire plants with thousands of I/O.  Mitsubishi PLCs are complemented by a comprehensive array of software tools and networking technologies and offer seamless integration to our other automation products such as VFDs, motion control and HMIs, to provide a comprehensive solution with the controller at the center

Industrial Ethernet

Phoenix Contact offers an extensive range of Industrial Ethernet electrical equipment for all aspects of an Ethernet-based automation solution. From infrastructure devices, such as unmanaged and managed switches, to Ethernet I/O, Power over Ethernet, and Wireless, all products are designed to industrial specifications to ensure reliability under the most adverse conditions.

VFD (Variable Frequency Drives)

A VFD, or variable frequency drive, can be used in a wide variety of applications, from small kitchen appliances to large compressors or mill drives. These drives are adjustable - speed. They control the AC motor speed as well as the torque by varying both the motor input frequency as well as the voltage. They offer opportunities for energy savings, and as technology as continued to improve, their cost and size have been reduced while their performance has improved, making them more feasible for a greater portion of the population on a much wider scale.

Motion Controllers

Introducing the Motion Controller Q Series, meeting the needs for higher performance and smaller size to satisfy high-speed motion control applications! Compatible with the Q Series PLC (Platform), which incorporates Multiple CPU technology, the Motion CPU and PLC CPU are selectable and work in parallel to provide greater flexibility and unmatched performance. A large-scale control system (Up to 96 axes per system) can be created using an extremely compact package as Q Series PLC.

Servo Motors

Mitsubishi Servo Motors are made to high standards and offer a wide range of power, speed and inertia ratings providing a motor for all applications. Ranging from 50W through to 55kW and with specialist type motors available (flat "pancake"motors) the new Super Series Servo Motors complete the line-up of electrical equipment offered by Mitsubishi Electric

Variable Frequency Drives

Since over 65% of electrical energy used industrially/commercially is utilized by motors, it’s no wonder that variable frequency drives (VFDs) are becoming more popular, especially since they can make motors run much more efficiently. Investing in a variable frequency drive (a.k.a. adjustable frequency/speed, AC, or micro drives) is one viable, proactive option.

VFDs are used in a wide variety of applications these days, from small appliances to compressors and huge mill drives used in the mining industry. They are used where energy consumption and efficiency is an important consideration. An example of this is in an application where a variable-torque pump or centrifugal fan is in use, especially where the torque and power of the load vary with the cube and square, respectively, of the motor’s speed.

If your facility uses AC (alternating current) and you have motors that run at variable speeds and you control them mechanically or have them run at full load; you need to install variable frequency drives. Frequently, variable frequency drives are called VFDs or inverters. They save money on electric costs and wear and tear on your motors.

Another advantage to using variable frequency drives is the lack of current surge during start-up, which further reduces electricity consumption and surge penalties imposed by power companies.

In addition to saving energy, VFDs also reduce stress on power supplies and reduce motor wear, resulting in long-term savings on maintenance and repair.

Common Uses for Variable Frequency Drives Include:

• HVAC Systems
• Fan Systems
• Pump Systems
• Escalators
• Compressors
• Extruders
• Conveyors
• Mixers
• Controling the Speed of Any AC Motor

MROstop.com is your variable frequency drive supplier.  We have the best mitsubishi inverter prices on the internet!

• 1/8 Hp VFD
• 1/4 Hp VFD
• 1/2 Hp VFD
• 1 Hp VFD
• 2 Hp VFD
• 3 Hp VFD
• 5 Hp VFD
• 7.5 Hp VFD
• 10 Hp VFD
• 15 Hp VFD
• 20 Hp VFD
• 25 Hp VFD
• 30 Hp VFD
• 40 Hp VFD
• 50 Hp VFD
• 60 Hp VFD
• 75 Hp VFD
• 100 Hp VFD
• 125 Hp VFD
• 150 Hp VFD
• 175 Hp VFD
• 200 Hp VFD
• 250 Hp VFD
• 300 Hp VFD
• 350 Hp VFD
• 400 Hp VFD
• 450 Hp VFD
• 500 Hp VFD
• 550 Hp VFD
• 650 Hp VFD
• 600 Hp VFD
• 700 Hp VFD
• 750 Hp VFD
• 800 Hp VFD
• 900 Hp VFD
• 1100 Hp VFD
• 1200 Hp VFD

Ace Shock Absorbers

ACE is the World leader in deceleration technology. Ace shock absorbers perform a range of functions including preventing impact damage, improving product performance, providing longer life and reliability, and decelerating loads, enabling mechanical devices to operate smoothly and efficiently. Ace Shock Absorbers encompass new innovations including the award winning SC2 Heavyweight Series and the adjustable and self-compensating industrial shock absorber models. This can benefit multiple industries including steel, material handling, robotics, automotive, medical and many more.  ACE Shock absorbers are made in the USA and every shock is tested 100% before shipping.

ACE Miniature Shock Absorbers are self-contained hydraulic units. The MC 5 to MC 75 model range has a very short overall length and low return force. Its small size allows for high energy absorption in confined spaces, while the wide effective weight ranges accommodate a variety of load conditions. With threaded outer bodies and multiple accessories, MC models can be mounted in numerous configurations.

ACE’s award winning SC2 300 and SC2 650 Heavyweight Series Shock Absorbers deliver up to 950% of the effective weight capacity and 280% of the energy absorption capability of standard models. These durable units are ideal for decelerating heavy weights moving at low velocities. The Heavyweight Series design combines the piston and the inner tube into a single component, the piston tube. It acts as both the pressure creating and pressure controlling device.  ACE’s SC2 300 and SC2 650 Heavyweight Series Shock Absorbers offer expanded effective weight ranges and dramatic increases in energy absorption capability, for handling a wider range of applications.  These revolutionary shock absorbers provide dual performance benefits. They offer soft contact deceleration where initial impact reaction forces are very low with the advantages of self compensation to cope with changing input energy conditions without adjustment.

ACE MA Series miniature shock absorbers offer a compact design with true linear deceleration, and are adjustable over a wide range of conditions. If your preference is a fully adjustable shock absorber rather than a self-compensating model on your application, then the MA Series provides a directly interchangeable alternative.

Browse Ace Shock Absorbers and Shock Absorber Accessories at MROstop.com

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Firestone W01-358-0981 Bellows

The W01-358-0981 style 28 bellows-only is a “Super Duty Airstroke” which is a high temperature, oil resistant part made of Firestone's Epichlorohydrin elastomer.  Technigram 111 applies to this component and includes complete details about the advantages and limitations of this special elastomer.  The fact that this part is a bellows-only means that the flanges for attaching it to the machine are part of the machine and not included in the scope-of-supply with this part.

A great application for Epichlorohydrin would be on a paper machine controlling the nip pressure between two rolls in an atmosphere of 93°C. In this case, the Airstroke is at constant height and pressure, probably 99% of the time. (Except when one roll is backed off for threading of the material.)  Epichlorohydrin will far outlast our standard elastomer in this instance, and, therefore, is well worth the extra cost.  Download the Firestone Techinigram here or download the bellows spec sheet for part number W01-358-0981 here.

Purchase a wide variety of Firestone air springs , bellows and accessories, including the Firestone W01-358-0981 bellows from MRO Stop

Quick Exhaust Valve

These Super quick exhaust valves feature a special molded shuttle designed especially for quick response, high flow and long cycle life.  The universal design of the Quick Exhaust Valve allows it to be used as a valve, a shuttle valve, or plug the exhaust port and use it as a check valve.  With the molded shuttle design, the Super Quick Exhaust Valve have an operating range as low as 1 psi to 150 psi.

These valves are used across all industries wherever fast pneumatic cylinder stroking is required.  Some industries where quick exhaust valves are used include: wood/lumber, tire, food packaging, paper finishing, material handling & conveying, stamping and die-cutting.

These valves are applied to allow cylinders to exhaust air at the cylinder port instead of having the air travel all the way back through the supply tubing to the directional valve to exhaust there.  These valves can also be used as a shuttle valve, the “or” logic function, automatically selecting the higher of two input pressures to produce an output.

We also offer 316 stainless and electrically operated (including hazardous locations) quick exhaust valves from Versa.

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Oil Safe Containers

Maintenance Professionals are starting to take a proactive approach to the storage, handling, and dispensing of all types of oils. Today, oils are an expensive asset and they must be carefully managed and contained. The Oil Safe professional lubrication system is the lubricant storage system that makes plant and machinery lubrication easier, faster and cleaner. The color-coded attributes make it simple for anyone to identify what type of oil is in each container as well as improving safety for the entire organization. Oil Safe lubricant transfer containers are the global standard and have proven themselves to be extremely reliable and critical to best practice lubrication programs for well over a decade. They are coded, fully sealing, and ensure the accurate delivery of clean lubricant from bulk storage to point of use every time. MROStop.com has what you need regarding Oil Safe containers from storage, utility, and long spout lids to oil drums and extension hoses.

*Please be advised that Oil Safe is not suitable for use with fuels or solvents.

Buy Oil Safe Containers, Lids and Accessories from MROstop.com

The Husky 515, 1/2 inch (12.7 mm), double diaphragm pump operates on as little as 20 psi  and is available in polypropylene, groundable acetal and PVDF materials of construction.

• Delivery up to 15 gpm (56.7 lpm)
• Easy-to-service air valve and ball checks
• Reliable air valve for years of dependable performance

Buy Graco Husky 515 Double Diaphragm Pump from MROstop.com

Industrial Pressure Washers

Looking for industrial pressure washers? We suggest Graco’s new NXT Air Motor, Hydra-Clean^®  product line. These pressure washers are ideal for food processing facilities, heavy duty cleaning and maintenance, shipyards, oilrigs and other industrial applications. The Graco Hydra-Clean^®  pressure washers contain pneumatically-driven pumps and are designed for ease of operation, maintenance and rugged dependability. These products provide high pressure for water and cleaning chemicals up to 3,000 PSI and flow rates up to 9 GPM.

Whatever your industrial pressure washer needs, MROStop.com is confident with us you can find exactly what you are looking for. Download these products PDFs from Graco to learn more about their products:

Graco-Hydra-Clean                         Graco-Hydra-Clean-Manual

Graco-Mining-Applications                Graco-Drilling-Applications

Buy the NXT Air Motor, Hydra-Clean industrial pressure washer at MROstop.com

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Make sure you select the correct industrial air spring for your application by reviewing the specs of your model number.  Download these PDFs for industrial air spring statistic data, line drawings, how to guides and more!

Download Firestone Air Spring Catalog

Download Firestone (Metric) Air Spring Catalog

Download Goodyear Air Spring Catalog

When applied and maintained properly, industrial air springs can last for long amounts of time, trouble-free of service.  Most failures are caused by a lack of suspension maintenance or improper application. Common failures are caused by misalignments, loose girdle hoops, abrasions, air spring overextension and the bottoming out of air springs.  Download Firestone's guide to common air spring failures that are usually not covered by warranty.