Flapper Peening was invented by 3M in the 1960’s for US Army helicopter field repairs during the Vietnam war.

Shockform has developed and patented a new rotational speed controller for flapper peening. 

The New FlapSpeed™ Controller V.3 for flapper peening

offers flapper peening that is:

BETTER

• Controller continuously monitors and adjusts the RPM for more reliable and repeatable peening every time

• Alarm will sound if rotational speed is out of tolerance

• USB recording of process parameters in real time

• Touch Screen User Interface

FASTER

• With the personalized Intensity versus RPM curves for up to 5 operators
• Spend less time on preparation and more time peening.

EASIER

• Press start and get the exact rotational speed

• Use the integrated stopwatch or countdown timer to do saturation curves.

• Easily meet Nadcap and other process requirements

Partial list of companies already using the FlapSpeed™ Controller 

Quotes from a few clients...

‘’I have begun running a profile and the equipment works great. The packaging , traveling case and presentation of the unit is impressive. Great Job.’’  Troy, Sonaca

Why should I choose the FlapSpeed™ Controller for Flapper Peening?

Flapper peening is a great process to re-peen small areas of a component after removal of a scratch or surface damage.  Flapper peening is fast, easy and cost effective.  Learn more with this presentation on flapper peening using the FlapSpeed™ Controller.

Presentation on Flapper Peening using the FlapSpeed™ Controller 

Should I choose the Air or the Electric FlapSpeed™ Controller ?

The FlapSpeed™ Controller - Air uses compressed air to drive either a straight or a 90 degree die grinder equipped with a special speed sensor, buzzer and on/off switch.  The air model comes with a 25ft hose and is best suited for work on large parts or directly on the aircraft where the controller might be left on the ground.   The die grinders used with the air controller are slightly larger than the hand piece of the electric controller. However, the straight grinder can be easily adapted to work with the largest mandrel (FPM-0200) and flap  (FLAP-200) to obtain intensities in the C Almen scale.  Furthermore, the air model can be used almost anywhere in the world with its wide range of electrical inputs (110-240v, 50-60 Hz). 

The FlapSpeed™ Controller - Electric is best suited for the peening of smaller parts that can be installed close to the controller.  The motor for the electric model has a 62 inch shaft and a small hand piece. For the electric model, the electrical input can be either 120V, 60 Hz or 220V, 50Hz.  The selection must be made before the assembly and cannot be changed afterwards. 

Should I choose just the Controller or the Complete kit ?

Companies already doing flapper peening, will often purchase the FlapSpeed™ Controller alone since they already have the magnetic strip holder, the mandrel, flaps and strips.  Companies that are starting with flapper peening or that are expanding their operation in a new building or site will want to purchase the complete kit which includes most of the necessary accessories. All that is missing is the Almen Digital Gauge (FPG-1000) to measure Almen strip deflection.  Because of its cost, it is priced separately from the kit.   

What are the specifications of the controllers?

Download our brochures with specifications or see them here.

Video: This video will help you understand how the FlapSpeed™ controller works. See the main features and the different screens of the controller (also on You tube)

Includes:

• FlapSpeed™ Controller with touch screen user interface, USB data recording, 'Intensity vs. RPM' curves for 5 operators, stopwatch and countdown timer

• Air Grinder (straight or 90 deg.) with installed speed sensor, buzzer and on-off switch

• Travel Case

• Certificate of Calibration

• User Manual (paper and .pdf copy)

• Price: $7,500

The Kit Includes:

• 1    FlapSpeed^TM Controller (FPK-A102 Above)

• 1    Magnetic Almen Strip Holder

• 1    Mandrel for 9/16" X 1-1/4" Flaps

• 10  Flaps 9/16" X 1-1/4"

• 100 Almen Strips A1

• Price: $8,400

Note: If you are starting out in peening, you may also need an Almen Gage

FlapSpeed^TM Controller - Electric (FPK-E102)

Includes:

• FlapSpeed™ Controller with touch screen user interface, USB data recording, 'Intensity vs. RPM' curves for 5 operators, stopwatch and countdown timer

• Speed sensor integrated in motor

• Travel Case

• Certificate of Calibration

• User Manual (paper and .pdf copy)

• Price: $7,500

The Kit Includes:

• 1    FlapSpeed^TM Controller (FPK-E102 Above)

• 1    Magnetic Almen Strip Holder

• 1    Mandrel for 9/16" X 1-1/4" Flaps

• 10  Flaps 9/16" X 1-1/4"

• 100 Almen Strips A1

• Price: $8,400

Note: If you are starting out in peening, you may also need an Almen Gage  

Additional 90 degree Air Grinder with installed speed sensor, buzzer, on-off switch and 25 ft. hose

                                                  (FGR-090)

Additional straight Air Grinder with installed speed sensor, buzzer, on-off switch and 25 ft. hose

                                                   (FPK-000)

Almen Digital Gauge                         (FPG-1000)

Magnetic Strip Holder 2" X 7" X 1"        (FPM-1000)

9/16" X 1" 3M Roto Peen Flap              (FLAP-100)

9/16" X 1-1/4" 3M Roto Peen Flap        (FLAP-125)

1" X 2" 3M Roto Peen Flap                  (FLAP-200)

Mandrel 7212 for 9/16" X 1" Flap          (FPM-0100)

Mandrel 7210 for 9/16" X 1-1/4" Flap    (FPM-0125)

Mandrel 7211 for 1" X 2" Flap              (FPM-0200)

Controller Dimensions	L12.5" × W10.1" × H6.0" (L315mm × W255mm × H150mm)
Controller Weight	8.4 lbs (3.8 Kg)
Protection	Weather proof Impact resistant NK-7 Resin Exterior
Grinder Type	3M
Grinder Weight with Sensor	2.3 lbs (1.04 Kg)
Controller Speed	22.1 MHz
Control Signal	Closed Loop Feedback using Proprietary Control Software
Response Time	0.3 to 0.5 sec
Repeatability	+/- 30 RPM
Continuous RPM Monitoring	Yes
Alarm	Ajustable when RPM is out of range
User Input curves	Almen Intensity vs. RPM for 5 operators
Data Recording	Yes, through included 2 Gb. Memory key
Real-Time Clock	Yes
Contrast Adjustment	Yes
Calibration Setup	Yes
Memory	Flash = 256K, SRAM = 128K
Display	320 × 240 pixels, black on white display
Keyboard	Touch Screen
Min/Max Supply Pressure	14.5 - 145 psi (0.1 - 1.0 Mpa)
Regulating Pressure Range	0.72 psi to 90 psi (0.005 - 0.9 Mpa)
Max Flow Rate	53 cfm (1500 l/min) @ 90 psi (.62 Mpa)
Operating Temp.	32°F to 122°F  (0°C to +50°C)
Optical Sensor Type	EZ-Beam technology
Optical Sensor Dimensions	L3.1" × W0.53" × H0.74"  (L79mm × W13mm × H19mm)
Optical Sensor Cord Length	25 ft (7.7 m)

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