Linear Actuators Specifications

Help with Linear Actuators specifications:

Device Type



	Your choices are...
	Rod Type		Linear actuators are used to create a controlled linear motion. Rod type linear actuators have a rod that extends and retracts, similar to the rod in a cylinder. The load attaches to the end of the rod.
	Rodless		Rodless linear actuators provide linear motion via a motor-driven ball screw, ACME screw, or belt drive assembly. They can also be driven by pneumatic or hydraulic drives. The actuator's load is attached to a fully supported carriage.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Actuation Type



	Your choices are...
	Electrical		Electrically driven motors used to drive actuators.
	Electrohydraulic		A self-contained electrically driven hydraulic pump used to drive cylinders or actuators.
	Hydraulic		Assembly or cylinders that are powered by a hydraulic fluid.
	Pneumatic		Assembly or cylinders that are powered by air.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Specifications


	Stroke or X-Axis Travel		X-axis linear travel or the maximum distance the shaft travels from fully retracted to fully extended.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Rated Speed		Maximum linear speed; typically rated at low or no load.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Rated Force		Note: This is not the maximum static load.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

Drive Specifications



	Your choices are...
	Lead Screw/ACME Screw		A lead screw with matching threads on the screw and nut.
	Ball Screw		A lead screw and ball nut combination where the balls in the nut circulate when in motion.
	Belt Drive		A belt connects the motor to the actuator. May be used in both rod and rodless actuators.
	Direct Drive		The motor is connected directly to the actuator.
	Gear Drive		The motor is connected to the actuator through a set of gears.
	Handwheel/Crank		The unit does not contain an integral motor drive. It is a handwheel or crank handle drive.
	Motor Mounts only (No Motor)		The unit does not have an integral motor, but it does come equipped with motor mounts or couplings for mounting a motor that is supplied by the user.
	Micrometer		A micrometer produces the linear motion.
	Rack & Pinion		Rack and pinion gears are used to convert rotation into linear motion.
	Other		Other unlisted, specialized or proprietary drive configurations.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Lead		Lead = Inches per 1 revolution of screw. Note: Lead screw pitch = 1/lead or number of turns per inch of linear travel.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

Motor Specifications



	Your choices are...
	None		The unit does not include a motor, or can be obtained without one (as an option).
	AC		AC motors a very wide class of motors, including single / multiphase, universal, servo, induction, synchronous, and gearmotor types.
	AC Servo		AC servomotors are permanent magnet synchronous motors that can have low torque-to-inertia ratios for high acceleration ratings.
	DC		Brushed DC motors have built-in commutation, meaning that as the motor rotates, mechanical brushes automatically commutate coils on the rotor.
	DC Brushless		Brushless DC motors use an external power drive to allow commutation of the coils on the stator.
	DC Brushless Servo		False center DC servomotors have an output shaft that can be positioned by sending a coded signal to the motor.
	DC Servo		False center DC servomotors have an output shaft that can be positioned by sending a coded signal to the motor.
	Linear Motor		Linear motors generate force only in the direction of travel. A linear motor applies thrust directly to a load, and does not require any intermediate mechanism to convert rotary motion into linear motion. Linear motors are capable of extremely high speeds, quick acceleration, and accurate positioning.
	Stepper		Stepper motors use a magnetic field to move a rotor in small angular steps or fractions of steps.
	Other		Other unlisted, specialized, or proprietary motors.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Motor Continuous Power		Sustainable power does not include short-term peak power ratings.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Motor Voltage		This is the voltage applied to the motor and includes AC, DC, and stepper type motors.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

Motor Features



	Your choices are...
	Integral Brake		The motor has an integral brake to hold its current position.
	Motor Encoder Feedback		Provides continuous output of position, analog, or digital.
	Linear Position Feedback		Provides continuous output of position, analog, or digital.
	Home / Limit / Position Switches		Has switched outputs that can limit travel.
	Tachometer Feedback		Tachometers can be of both the contact and noncontact type. They measure the speed of a rotating shaft in RPMs.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Material



	Your choices are...
	Aluminum		A bluish silver-white malleable ductile light trivalent metallic element that has good electrical and thermal conductivity, high reflectivity, and resistance to oxidation.
	Steel		A commercial iron that contains carbon in any amount up to about 1.7 percent as an essential alloying constituent. It is malleable when under suitable conditions, and is distinguished from cast iron by its malleability and lower carbon content.
	Stainless Steel		Stainless steel is chemical and corrosion resistant and can have relatively high pressure ratings.
	Plastic		Any of numerous organic, synthetic, or processed materials that are mostly thermoplastic or thermosetting polymers of high molecular weight and that can be made into objects, films, or filaments.
	Other		Other unlisted material.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Mounting Type



	Your choices are...
	None		No designated method for mounting.
	Clevis or Eye		Clevis or eye attachment, which connects to the extended end of a piston via threads.
	Double-end Mount		Nose and rear contain threaded bosses for nut attachment.
	Face Mount		Threaded holes on front face for attachment.
	Flange		Mounting flange or bracket.
	Floating Mount Bracket		Floating brackets provide for more convenient installation.
	Foot		A foot bracket is a type of flange, which rests underneath.
	Lug		Lugs are short blocks attached to the side that have holes used to allow mounting to another surface.
	Nose Mount		Nose is threaded for mounting through hole with nut on other side.
	Rear Mount		Rear has tapped holes or mounting flange.
	Threaded		Designed to mount to bolts via threaded holes in the head or cap.
	Trunnion		A trunnion is a specially designed mounting block, and can be located at the cap, head, or intermediate location.
	Other		Other unlisted, specialized, or proprietary mountings.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Features



	Your choices are...
	Adjustable Stroke		End points or total stroke length can be adjusted.
	Brake / Clutch Combination		A combination brake / clutch assembly for slowing or stopping the linear motion (brake) and connection or disconnection of the drive mechanism (clutch).
	Bumpers / Cushions		Cushions or bumpers for softening impact at ends of stroke.
	Way Covers / Bellows		Way covers, which are sometimes referred to simply as bellows, cover the rails / guides for protection from dust and dirt.
	Protective Boot		Cover that protect moving parts against environmental damage.
	Cleanroom Rated		The unit is certified for use in cleanroom environments. Cleanroom requirements are typically specified in orders of magnitude of 1, 10, 100, 1000, 10,000, relating the particles per million and defining the particle size.
	Closed Loop Control		This is sometimes called servo control. The cylinder has external devices that feedback a signal to the pump control giving it position information. One configuration option is to use a servo / proportional valve on the cylinder.
	Double Carriage		The slide or stage is equipped with two sliding carriages.
	Double End Rod		Rod extends out of both ends of cylinder with attachment features such as threads on both ends.
	Integral Flow Control		Integral flow control incorporates a flow control valve or device that limits the amount of air or fluid.
	Ground Screw		Ground screws are made on a grinding wheel. Typically, this produces a screw with 0.0005 inch per foot lead accuracy.
	Holding Brake		Works in conjunction with the self-locking feature to increase holding force.
	Integral Sensor		Integral sensor to monitor position and/or proximity comes equipped.
	Intrinsically Safe		The device can be used in hazardous environments.
	Magnetic Switch		Magnetic switch (Hall effect sensor, reed switch) indicates whether thruster position is in retracted or extended position.
	Multi-position		Endplate can be actuated to different positions along its stroke, not just the endpoints.
	Non-rotating		Multiple rods or key feature to prevent the plunger from rotating.
	Rotary Axis		A multi axis stage where the last axis (Y or Z) is capable of rotary motion.
	Self-locking		When there is a loss of signal, the device will lock to its current position.
	Shock Absorbers		Pneumatic or hydraulic fluid absorption of shock.
	Integrated Overload Slip Clutch / Torque Limiter		A device used to allow for slip when torque exceeds overload limits.
	Stackable		The slide or stage can be stacked (one on top of another) to provide linear motion in more than one axis.
	Side Motor / Mount		A side motor or side motor mount is offered to fit in smaller spaces. This may be accomplished with a right angle gear box.
	Thermal Overload Protection		Motor has a thermal switch which trips when a preset temperature is exceeded.
	Vacuum Rated		The unit is vacuum qualified for use inside chambers.
	Water Resistant (Sealed)		Rated to resist moisture which could cause corrosion.
	Wipers / Scrapers		The unit is equipped with wipers or scrapers for cleaning the surface of the rails / guides.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.