Click the logos to see our top safety product lines:


Bosch Rexroth is the world leader in the drive, motion and control technologies that power today’s most advanced manufacturing systems.

Airline carries their full product line in these technology areas: Industrial and Mobile Hydraulics, Pneumatics, Aluminum Structural Framing, Linear Motion Technologies and Electric Drives and Controls.

Aluminum Structural Framing

Save time and money building complex guarding, machine frames, workstations and more. This high-quality structural framing is as durable as steel but much easier to assemble.

There’s no welding, painting or waiting. It goes together fast and can easily be modified for reuse if your requirements change.


We carry all Bosch Rexroth accessories and hardware such as connectors, gussets, caps, door handles, fasteners and cover strips to manufacture your physical guards.

EcoSafe Systems

EcoSafe™ is a wide range of machine and perimeter guarding options for creating enclosures, guards, and barriers. EcoSafe™ panels assemble and install easily from standard components.

Partitions can be constructed of wire mesh screens, protective panes or panels, and then mounted directly into T-slot profiles integrated into the system.

EcoSafe Systems

Omron Automation & Safety is a leading manufacturer of advanced industrial automation products, with core competencies in sensing, control, vision and panel components. In 2006, Omron welcomed Scientific Technologies, Inc. (STI) a major manufacturer of machine safeguarding products, to their organization. By combining Omron’s advanced sensing, control, and networking technologies with STI’s comprehensive line of safety controls and components, Omron Automation & Safety helps customers create safer workplaces for their employees.

Safety Light Curtains

Safety light curtains solve your optical guarding needs. From compact models designed for machine locations where space is tight, to larger, robust light curtains powerful enough to guard large perimeters, Omron STI offers many options:
• Multiple built-in functionalities
• Floating; Blanking; Muting
• Individual Beam indicators
• Short to long spans

Safety Laser Scanners

World’s most: compact size (104.5 mm height), power efficient (5 W) and light weight (1.3 kg)
• Range: up to 3 m for safety zone and 10 m for warning zones
• 70 sets of safety zone and warning zone combinations
• Configuration memory block, no need to reprogram after sensor replacement, minimal down time
• Easy-to-use software tool simplifies creation of complex zone combinations

Monitoring Relays

Control reliability is mandated in U.S. standards for safety implemented circuits. These criteria can be met by using redundant safety-rated device outputs in conjunction with a safety relay. Safety relays range in function from stop-motion detection to 2-hand palm button control, to dual channel input units with time-delayed outputs that provide conformity to ANSI B11.19, Section 5.1. All safety relays carry the CE mark and are UL and C-UL listed.

Safety Network Controllers

NE1A Safety Network Controller can be used 3-ways: as a stand-alone controller; as an expandable safety network with remote I/O blocks; or combined with an existing DeviceNet network to form a Safety + Control Network. Eliminate long runs of complicated wiring during installation. This system replaces the wiring with a network between safety components distributed over many different locations. Programmable safety function blocks eliminate rewiring to make modifications. Safety I/O Terminals can be added to increase safety I/O capacity for distributed allocation through the network.

Safety Interlock Switches

Omron STI safety switches are designed to work together with hinged, sliding, or lift-off guards and barriers. When the guard is opened, the power supply to the machine is disconnected.
• Compact sizes.
• Several contact arrangements.
• Heavy-duty housing for demanding industrial applications.
• Optional E-stop provides emergency stopping at the extreme end of the installation.
• Safety lock mechanism prevents operating errors.

A4EG Enabling Grip Switches

Enabling Grip Switch with distinct feel for three easily discernible positions
• The difficult task of configuring safety circuits is now easily achieved by combining the A4EG with the G9SX-GS.
• In addition to the standard models, the lineup also includes models with an emergency stop switch and models with a momentary operation switch.
• An optional Holding Key (sold separately) provides a versatile method for selecting modes.
• Equipped with conduit connector.

Safety Contact Strips and Safety Bumpers

The safety edge or safety bumper are flexible strips which can be fixed to the edge of a moving part such as a machine table or powered door where there is a risk of a crushing or shearing hazard. If the moving part that includes the safety edge or bumper strikes operator (or vice versa) the flexible safety edge is depressed and will send a signal to the power source to stop.

Quick Disconnect Universal Safety Mats

Rugged Omron STI Universal Safety Mats guard machine operators against some of the potential hazards and dangers of the modern manufacturing environment. An Omron STI Universal Safety Mat system (UM series safety mat combined with an MC3, MC4, or MC6) offers a simple method for guarding personnel around hazardous machines. A safety mat system offers freedom, flexibility, and reduced operator fatigue when compared with traditional guarding methods. Full visibility of and access to the work area is maintained.


Safety requirements for workers in almost all industries have evolved to ensure that safety in the workplace is no longer an option. Government organizations around the world have made worker safety a priority for companies which has drawn even greater attention to the topic of safety. The latest product developments from the Schmersal Group have focused on advanced safety systems designed to satisfy the most current safety standards and regulations.

Compact Safety-Rated Limit Switches


The safety edge or safety bumper are flexible strips which can be fixed to the edge of a moving part such as a machine table or powered door where there is a risk of a crushing or shearing hazard. If the moving part that includes the safety edge or bumper strikes operator (or vice versa) the flexible safety edge is depressed and will send a signal to the power source to stop.

Safety Interlock Switches

Are mounted to doors and gates to monitor status.  An open door or gate shuts down the machine operation and prevents a restart until all doors and gates have been shut to ensure machine operator safety.

Emergency Stop Pushbuttons

Command devices are of great importance for the man-machine interface in the area of industrial applications. For example, they are mounted in switch-boards, control panels, two-hand control panels, in lift manufacture and on materials-handling plants, including conveyors. Manual actuation of the devices starts operating sequences and functional processes or serves to bring these to a stop.

Safety Light Curtains

Optoelectronic safety device are used as entry, danger point or danger zone guards. Safety light grids and light curtains can be integrated into the safety concept of the machine or plant even under tight space conditions by virtue of their very compact design. These safety devices are also often used on presses to guard danger points or zones. Depending on the particular resolution of the safety light grids and curtains, protection of persons, hands or even fingers can be provided.

Safety Mats and Edges

Actuated by physical contact, tactile safety monitoring devices stop the hazardous movement. The diversity of applications requires constructively different devices.

Enabling Devices

Consent switches are used to protect persons from potentially hazardous situations where machine guards need to be inactivated completely or in part in special operating modes.

Door-handle Actuator


The operator does not have to press a button on an external switching plate when the solenoid interlock at a safety guard needs to be unlocked. The switching function is now exactly where it is needed: On the safety door handle which is used to open the safety guard.


Switches are used to give signals to start machines and to open or close electrically driven doors, gates and barriers.

The pull-wire switches are manually operated by pulling.

Safety Monitoring Relays

Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches, and solenoid interlocks.

Programmable Safety Controllers

Safety controllers are connected between machine guarding devices such as keyed interlocks, non-contact
sensors, light curtains, etc. and the machine’s stop control elements such as a motor contactor or control relay. These controllers contain redundant, self-checking monitoring circuits and positive-guided relays and/or solid state outputs. Each is designed to detect faults in the safety system’s components and interconnection wiring, and their own internal monitoring circuits and output.


ABB/Jokab is a leader in power and automation technologies that enable utility and industry customers to improve performance while lowering environmental impact. In 2010, ABB acquired Jokab Safety International, a major manufacturer of products and solutions for machine safety. As an ABB distributor, Airline has full access to Jokab machine safety components to help meet our customers’ requirements.

Safety Controllers

Safety controllers for supervision of entire safety system based on the dynamic safety circuit.

Stop Time Measurement and Machine Diagnostics

Stop time measurement should be performed to find out which safety arrangements can be used in a certain area around a machine, and where they should be located.

Stop Time Measurement and Machine Diagnostics
Safety Control Devices

Safety control devices are used to directly start and stop dangerous machine movements. ABB Jokab Safety offers several different types of control devices to meet different needs.

Safety Control Devices
Safety Relays

Safety controllers for supervision of entire safety system based on the dynamic safety circuit.

Light Curtains, Beams, and Grids

Light curtains and light beams for optical protection in an opening or around a risk area.

Emergency Stops and Pilot Devices

Emergency stops and pilot devices for dynamic and static safety circuits.

Emergency Stops and Pilot Devices
Safety Sensors, Switches, and Locks

Dynamic non-contact sensors, safety switches, magnetic switches, and locks.

Safety Sensors, Switches, and Locks
Mats, Edges, and Bumpers

Jokab’s range of contact edges and bumpers for protection against crush injuries. Safety mats are for personal protection within dangerous areas.

Mats, Edges, and Bumpers
Grace Engineered Products

Grace Engineered Products manufactures the GracePort® line of convenience interfaces. GracePorts® extend the data ports of internally mounted devices from the inside, to the outside of control panels. Grace provides over 6000 different combinations of cables, connectors, and outlets in NEMA 1/12/4/4X, stainless steel, and Nema 7/9 housings.

Permanent Electrical Safety Devices

Permanent Electrical Safety Devices (PESDs) are a family of electrical components hardwired to a source of voltages and installed into electrical systems. They enable workers to verify the voltage status of equipment without exposure to the hazard. PESDs reduce the likelihood of arc flash and shock hazard because they diminish voltage exposure, provide voltage labeling on all sources and allow for 24/7/365 visual and/or audible indication of voltage.



Banner is a global leader in process and industrial automation, helping customers increase efficiency, reduce costs, ensure quality, monitor and control processes, and safeguard employees. Designed to be easy to use and implement, and built to perform reliably in challenging environments, Banner’s comprehensive collection of machine safety products provide the highest levels of safety without compromising productivity.

Safety Light Curtains

Safety light curtains protect personnel from injury and machines from damage by guarding points of operation, access, areas, and perimeters. With self-checking circuitry, light curtains provide control reliability and high levels of fault tolerance.


Safety Light Curtains
Safety Laser Scanners

Safety laser scanners provide a laser safety solution for safeguarding mobile vehicles and stationary applications, such as the interior of robotic work cells that cannot be solved by other safeguarding solutions.

Safety Interlock Switches

Safety interlock switches respond when a mechanical guard opens. Interlock switches feature “positive opening” contacts for high reliability regardless of environmental conditions and withstand attempts to override the switch and defeat the system.

Dozens of configurations are available.

Safety Controllers and Modules

Industrial safety controllers and modules provide an interface between safety devices and the machines and processes those devices monitor for an easy-to-use safety control solution.

Emergency Stop and Stop Control

Emergency stop devices provide workers a means of stopping a device during an emergency by pushing a button or pulling a rope in order to prevent injury to personnel and material loss.

Machine Safety Accessories

A wide selection of cables and wiring products, brackets, corner mirrors, and enclosures.


ROSS CONTROLS is a global manufacturer of pneumatic valves, control systems and safety products. Their products are used anywhere compressed air is used to perform a work process.

Safety Valves (manual exhaust/dump valves)

The manual L-O-X® valve controls air flow simply by a push of its large red handle in or out. The valve is open when the handle is pulled outward and air then moves freely from inlet to outlet ports. A short inward push of the handle closes the inlet to the flow of air and connects the outlet port to the exhaust port immediately exhausting downstream compressed air.

Safety Valve Controls (Electrical Operation w/ Monitoring)

Ross DM2 Series E Control Reliable valves are a double valve with dynamic monitoring and memory for air dump/release applications. These valves provide memory, monitoring and air flow control functions integrated into two identical valve elements for CAT 4 applications, except for the control of the clutch/brake mechanism on mechanical power presses. DM2 valves lockout if an asynchronous movement of valve elements occurs during the actuation or de-actuation, resulting in a residual outlet pressure of less than 1% of supply.


Meltric develops and manufactures safe and durable electrical plugs and receptacles for industrial environments. Meltric Corporation’s complete line of industrial duty plugs and receptacles (including the world’s only UL and CSA switch rated plugs and receptacles) are manufactured in a state of the art facility in Franklin, Wisconsin. With their only business being electrical plugs and receptacles, Meltic is focused on offering the safest, highest quality, and most reliable plugs and receptacles.

Plugs and Receptacles

Meltric Decontactor Series products combine the safety and function of a switch with the convenience of a plug & receptacle. They are UL and CSA rated for ‘motor circuit’ and ‘branch circuit’ switching and are approved NEC ‘line of sight’ disconnects. Key features, including silver-nickel butt-style contacts, enclosed arc chambers, dead front construction and high short circuit ratings, ensure user safety and eliminate the potential for exposure to arc flash or live parts, simplifying compliance with NFPA 70E.


SMC has established a position as the world leader in pneumatic technology and supports a range of over 600,000 product variations to meet the complex and diversified needs of its customers. The company is continually applying world-class design to pneumatic component and power control technology to develop advanced products with ever higher levels of performance. SMC believes that worker safety and increased productivity go hand-in-hand and has developed a variety of safety-related components that can be used in a safe pneumatic system.

Residual Pressure Release Valve

SMC’s VP300/500/700 series solenoid valve, offers high flow capacity and reduced power consumption (1.55W standard, 0.55W with power saving circuit). The series may be used as either a selector valve, or a divider valve. It is vacuum applicable up to –101.2kPa. Series VP3145/3165/3185 is a large size, 3 port solenoid valve with a rubber seal. It is possible to use the series in vacuum applications or under low pressure. Safety standard ISO13849-1 for category 3 and 4.

Two-Hand Control

Pneumatic-electric relay series VR32 converts the pneumatic signal to the electric relay. Series VR3100 indicates the presence of pneumatic pressure. It is equivalent to the pilot lamp of an electrical system. Series VR3110 is an ultra-compact air indicator light to monitor the presence of air pressure. It is equivalent to the pilot lamp of an electrical system.


Clippard Instrument Laboratory, Inc. is the leading manufacturer of miniature pneumatic valves, electronic valves, brass, stainless steel, corrosion-resistant cylinders, modular components, and fittings. Because of their focus on worker safety, Clippard offers a two-hand, no-tie-down (THNTD) safety circuit, which ensures that the machine operator’s hands are not in a position to be injured by the machine while in motion.

Two-Hand, No-Tie-Down Safety Circuit

Clippard’s VA-023 circuit module is a self-contained modular circuit board with all interconnections required to provide a Two-Hand, No-Tie-Down (THNTD) pneumatic circuit. Use of the VA-023 will assure simple and rapid installation of your Two-Hand-No-Tie-Down circuit. The main function of this control is to require a machine operator to use both hands to actuate the equipment, helping to ensure that the operator’s hands are not in a position to be injured by the machine as it is in motion.


Eaton is a global technology leader in power management solutions that make electrical, hydraulic and mechanical power operate more efficiently, reliably, safely and sustainably. Airline carries a wide range of Eaton products for circuit protection, automation, and control.

Safety Relays

Safety relays are intended to reliably monitor the signals from safety devices at all times and switch off quickly in an emergency. Eaton’s ESR5 safety relays provide optimal safety and a high degree of reliability for plant machinery. The ESR5 enables applications to meet the highest safety ratings in accordance with EN954-1, EN ISO 13849-1 up to PL e, and IEC 62061 up to SILCL 3.

LS-Titan Safety Limit Switches

LS-Titan Safety Limit Switches offer economic insulated plastic or rugged metal enclosures designed for worldwide applications. Modular, plug-in operating heads and bodies make LS-Titan a flexible switching solution. These switches are suitable for use in safety applications designed to protect workers or processes.

E49 Miniature DIN Limit Switches

Designed to meet international standards, these miniature limit switches are ideal for applications where space is restricted. Featuring a nonmetallic housing and NEMA 4, 4X, 6P and 13, these sensors are a good choice for corrosive environments.

Control Relays

The easySafety control relay monitors all commonly used safety devices and also takes over required control tasks for the machine. Packed with a host of conventional safety relays in the form of safety function blocks, easySafety not only features integrated safety functions but also standard functions, all in one device.

Arc-flash Safety Solutions

Learn more about how to protect against arc-flash with Eaton products in this Arc-Flash Safety Solutions Brochure

LS-Titan Miniature DIN Limit Switches

The LS-Titan limit switch line is a complete offering of safety position switches designed for worldwide application. Economical insulated plastic or rugged metal enclosures and modular, plug-in operating heads and bodies make the LS-Titan series a flexible switching solution. A highlight of the LS-Titan switch line is the world’s first electronic position switch (LSE models).

Provide a compliant and safe working environment.

Take the first step. Ask MPSA to identify your machine safety and compliance issues. We can do the rest. 

Learn more about us

Project Spotlights

See completed MPSA safety projects and applications.

MPSA Services

Learn more about the range of MPSA's machine guarding services.

Read "Safety Talk"

Haven't read our blog? Then you're missing out on best practices and advice from our MPSA experts!

Have a machine safety concern? Tell us about it!

Ask a Quick Question

Ask a quick question about machine guarding or MPSA.

Contact an Expert

Ask an in-depth question or start a discussion with one of our safety experts.

Request a Hazard Assessment

Request an MPSA professional on-site visit to identify hazards in your machinery and processes.