Nitinol Alloy Products

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Nitinol Heat Engine Kit


Heatmobile
Click on picture to see kit components

Heat Engine - Nitinol Metal Engine driven by hot & cold water.

The Heat Engineis a very special kind of heat engine that demonstrates the conversion of heat energy into mechanical energy. Based upon the work of Dr. Alfred Johnson who was granted a patent on this type of heat engine in 1977 patent # 4,055,955

It uses the unique property of Nitinol alloy to generate mechanical motion from heat. Nitinol has trained into a shape at high temperature (about 600 C) and allowed to cool to room temperature, where it can be easily deformed and welded into a loop.

When heated above a transition temperature (in this application about 50 C to 70 C) the Nitinol object abruptly returns to its high-temperature shape with a substantial force that is able to drive the pulleys and thus create motion.

See the Heat Engine in action!

More Information

Nitinol Heat Engine $65.95


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Biometal Silent Arm



BioMetal Robotic Arm

BioMetal Silent Arm Demo. For more information download the Silent Arm PDF Manual (20K)

Item BSA-01 $169.95

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Inch Bot

BioMetal Fiber Inchworm

BioMetal Fiber Walking Robot. This walking robot uss a small length of BioMetal Fiber. Place the walker on a non-slippery flat surface. Press the switch on the battery case for about 2 seconds to widen the leg angle. Release the switch to make the legs return to original position. Make the robot move forward by repeatly pressing and releasing the switch.
More Information

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Purchase BioMetal Fiber Here


Movie 1 MB (WMV)

BioMetal Fiber Inchworm - $29.95


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NanoMuscle Linear Nitinol Actuator

NanoMuscle

The NanoMuscle NM706-Nitinol wire (shape memory alloy) actuator is also available in large quantities. The NM706-Nitinol wire actuator provides 0.16" of stroke with 2 oz. output force. MOSFET driver is available for controlled actuation.

Manual pdf



NanoM-70
Linear Nitinol Wire Actuator - $9.95

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NanoMuscle Rotary Nitinol Actuator - 2 Pin

NanoMuscle

Weighing in at 4.2 grams, NanoMuscle Rotary shape memory alloy actuators are now available from Images SI, Inc. These spring-loaded rotary muscle wire actuators provide 60° of rotation using the linear NM70-Super nitinol actuator, encapsulated in a body with a cam-action rotary output shaft. Operating voltage ~3-6V.The rotary NanoMuscle memory metal actuators come in two different versions, the 2-pin NM70R-2P listed here, and 6-pin NM70R-6P listed below. MOSFET driver is available for controlled actuation.

Rotary Actuator pdf manual                                      Rotary Pin outs pdf



NanoM-70R-2P
Rotary Nitinol Metal Actuator - 2 pin- $9.95

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NanoMuscle Rotary Nitinol Actuator - 6 Pin

NanoMuscle

Weighing in at 4.2 grams, NanoMuscle Rotary shape memory alloy actuators are now available from Images SI, Inc. These spring-loaded rotary muscle wire actuators provide 60° of rotation using the linear NM70-Super nitinol metal actuator, encapsulated in a body with a cam-action rotary output shaft. Operating voltage ~3-6V.The rotary NanoMuscle memory metal actuators come in two different versions, the 6-pin NM70R-6P listed here, and the 2-pin NM70R-2P listed above. MOSFET driver is available for controlled actuation.

Rotary Actuator pdf manual                                      Rotary Pin outs pdf



NanoM-70R-6P
Rotary Nitinol Metal Actuator - 6 pin- $9.95

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MOSFET Switch

NanoMuscle

This MOSFET switch is designed to safely power the NM70R-6P shape memory alloy actuator across a wide range of speeds or input voltages. It allows either push-button control, or external Gate or CNTL signals (from 2.5-30V) to actuate the NM70R-6P memory metal actuator until the end-of-travel is reached. It then cuts power momentarily, preventing overheating of the shape memory "muscle" wires.

Manual pdf


MOSFET Driver - $13.95

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Flexinol Butterfly


Nitinol Butterfly

Nitinol demonstration of long life and durability, butterfly gently flaps its wings, beautiful lifelike motion makes it a great gift as well. Uses wall transformer for power (included).

Item Niti-BF $18.95

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Nitinol Expansion Spring


Nitinol Expansion Spring

Nitinol Expansion Spring

When cool, spring can be extended to 14 cm (5-1/2"). Heated, contracts to 29 mm (1-1/8") overall. With 350 gram hanging mass shrinks from 60 mm (2-1/4") long coil (cool) to 30 mm (1-1/8") long (heated) with 2 Amps. 6 mm (1/4") coil, 750 m (.03") wire, activates at 45-55 C equivalent to (131-149 F). Use several in series for greater distance, or in parallel for greater force.

PDF Manual

Item Niti-ES $44.95

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Nitinol Compresion Spring


Nitinol Compression Spring

Spring Dimension

Compression Spring When cool, can be pressed down to 16 mm ( 5/8" ). Heated with 3 Amps, it extends to 30 mm (1-1/4") with over 4 Newton's of force! 8 mm (5/16") coil, 950 m (.04") wire, activates at 55-65 C equivalent to (131-149 F).

Item Niti-CS $44.95

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Flexinol Air Valve

Nitinol Valve Valve Type: 2 way Normally Closed
Description: Nitinol air valve
Pressure: 75 PSI Forward Direction
Reverse Pressure: 35 PSI Max (40 PSI Relief)

Operating Voltage:1.6 V On/Max 5V
Current Draw: 0.8 to 2.5 A







Item Niti-Valve $29.95

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Nitinol Memory Wire


Live Wire

Fun and educational! You can bend it while cold, then heat it in hot water, and it will straighten quite forcefully. You can modify the remembered shape by annealing the wire. For more information Click Here.

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Nitinol Memory Wire $9.50

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Nitinol Memory Wire


This nitinol metal changes phase around 50oC. Bend it, then drop it into hot water and watch it return to its original shape! Can be set into different shapes by heating with a candle flame. Diameter: 0.75mm(approximately .03")

For more information on Nitinol material click here or Download this PDF file

Nitinol Wire is priced per foot


Enter Length in feet:

Bulk Discount -
10 feet or more @ $3.75 per foot.

Enter Length in feet:

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Nitinol Memory Wire Samples


These 3" samples of memory wire can be wound around a pencil to form a coil. When immersed in hot water, the wire returns to its original shape. The wires can be "set" into other shapes, using a candle flame. These wires have a smaller diameter than our memory wire by the foot.

For more information on Nitinol material click here or Download this PDF file

Nitinol Wire Samples are priced per 3" piece


Enter quantity

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For additional information read our online Nitinol Article.


Flexinol Wire

Flexinol wire properties:

Flexinol wire's physical function resembles biological muscle; when activated it contracts. To activate Flexinol it is heated above its transition temperature (typically 70°C). An electric current may be passed through the wire to heat it electrically.
The contraction movement may be applied to any task requiring physical movement with low to moderate cycling speeds. The small size, light weight, ease of use and silent operation allow it to replace small motors or solenoids.
When the material cools (or when allowed to cool) it can be stretched back it its original length for subsequent contractions.
Nitinol Wire

We offer Flexinol wire in a variety of diameters, from .002 to .015. Flexinol wire is also is available cut to length and precrimped, see below. We offer low temperture (LT) activation (contraction) 70° centigrade and high temperature (HT) activation (contraction) 90° centigrade, wires.


Flexinol is a trade name for shape memory alloy actuator wires. Made of nickel-titanium (Nitinol) these small diameter wires contract (typically 2% to 5% of their length) like muscles when electrically driven or heated. This ability to flex or shorten is a characteristic of certain alloys which, dynamically change their internal structure at certain temperatures.


Flexinol Wire properties


Diameter Size (Inches) Resistance (Ohms/Inch) Maximum Pull Force (grams) Approximate* Current at Room Temperature (mA) Contraction* Time (seconds) Off Time 70° C LT Wire** (seconds) Off Time 90° C HT Wire** (seconds)
0.003 5.0 80 100 1 0.5 0.2
0.004 3.0 150 180 1 0.8 0.4
0.005 1.8 230 250 1 1.6 0.9
0.006 1.3 330 400 1 2.0 1.2
0.008 0.8 590 610 1 3.5 2.2
0.010 0.5 930 1000 1 5.5 3.5
0.012 0.33 1250 1750 1 8.0 6.0
0.015 0.2 2000 2750 1 13.0 10.0

*Please note contraction time is directly related to electric current imposed. The guidelines are only approximations, since other factors like ambient temperature, air currents, and heat sinking will vary with specific devices.

** Approximate Cooling Time


Flexinol Wire Price List (cost per foot)

Item # Metric Item # Standard Unit Price
Flexinol 075 HT/LT Flexinol 0.003 $2.50 / ft
Flexinol 100 HT/LT Flexinol 0.004 $2.50 / ft
Flexinol 125 HT/LT Flexinol 0.005 $2.50 / ft
Flexinol 150 HT/LT Flexinol 0.006 $2.50 / ft
Flexinol 200 HT/LT Flexinol 0.008 $2.50 / ft
Flexinol 250 HT/LT Flexinol 0.010 $2.50 / ft
Flexinol 300 HT/LT Flexinol 0.012 $5.00 / ft
Flexinol 375 HT/LT Flexinol 0.015 $8.50 / ft


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Flexinol Wire Precrimped


     Nitinol Wire

Ring Terminal
Ring Terminal
Barrel Crimp Barrel Crimp
 Dimensions
W = .156
L = .375
E = .290
C = .109
Insul. Size = .035 - .065
Stud Size / Diameter = .094
Stock Thk. = .012
Material and Finish = Brass
 Dimensions
W = .078
L = .047
H = .037

There are two kinds of crimps available: ring terminals and barrel crimps (see diagram below).
There is a $30.00 setup fee with each crimping order. When calculating your assembly costs remember to add the cost of the Nitinol wire used (see wire price list above).
Note: Crimps cannot be sold as stand alone units.



1 - 100
101 - 2,500
2,501 - 10,000
$0.75 / each
$0.25 / each
$0.20 / each


Click here to view an illustration showing the method of measuring, for ordering, pre-crimped flexinol wire.

To place an order for pre-crimped Flexinol wire call 718.966.3694





Biometal Helix


BioMetal Helix

BioMetal Helix Dimensions (.006 x .70) inches. The advantage of the BioMetal Helix over standard Nitinol wire is that it may be stretched and contracted to twice its length. In this case a .75 inch length may be stretch to 1.5 inches.

Weight liftable on recover: 30 grams
Total resistance: 7.5 ohms
Typical activation current at 20C: 150mA
Typical cycle rate at 20C: per minute.

See following 118 KB movie.

More Information

Includes one SMA coil spring 20 mm long (in contracted state), 4 spectacle terminals, 4 eyelet terminals, instructions.

BioMetal Helix $46.95


Biometal Fiber

BioMetal Helix

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BioMetal Fiber Dimensions .15mm x 1 meter (or .006 x 39 inches english).

The BioMetal Fiber is a fiber-like actuator (drive unit) designed to contract (tense) and extend (relax) like muscles. The key feature of this product is its flexible, smooth movements like those of real life. Although soft and pliable like a nylon thread under normal conditions, it becomes stiff like a piano wire and sharply contracts, when a current is fed through it.

Practical force produed: 150 grams
Total resistance: 61 ohms/ meter
Standard drive voltage (V/M) 20
Typical activation current at 20C: 340mA
Typical cycle rate at 20C: per minute.

BioMetal Fiber $46.95

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