AWS 21-200 SERIES
CONNECTING
ROD SCALE

THE STANDARD FOR ALL CONNECTING ROD SCALES

UNIQUE FEATURES:

  • MAKE MASTERS
  • CHECK MASTERS WITH TRACEABLE MASS STANDARDS
  • PROVIDE INDEPENDENT PIN END/CRANK END WEIGHT
  • ELIMINATE "WEIGHT TRANSFER" ERRORS
  • FAST! CAN WEIGH MORE THAN 600 PIECES PER HOUR!
    • (Actual weigh time per rod is about one second.)
Typical Small Cradle


(typical fixed tooling and cradle)

  • The 21-200 Series of Connecting Rod Scale Systems consists of two AWS-200 Type Weigh-Cells mounted on a common base.
  • A single digital weigh meter provides simultaneous crank-end weight, pin-end weight and total weight readings.
  • Completing the system and supported on the Weigh Cells is a CUSTOM designed three point suspension cradle which gives the independent crank end and pin end weights.
  • Includes two test platforms, one per scale, to calibrate the scales and weigh other items such as wrist pins and pistons.
AWSI-21 Meter


(PLC driven weigh-meter)



DISPLAYING THE WEIGHT OF OUR TWO-WEIGH-CELL CONROD SCALE

  • PLC Driven Meter
  • High Visibility Back-Lit Color LCD Display With HMI Touch Screen
  • Displays The CRANK END And PIN END Weight Simultaneously
  • Displays The TOTAL Weight
  • Displays Reciprocating Weight (C.E. + P.E./2)
  • RS-232C Or RS-485 Serial Input/Output
  • Front Panel "ZERO", "PRINT"
Special systems beyond the capacities listed are developed on a "per job" basis.
Advance Weight Systems has designed Connecting Rod Systems for rods weighing more than 75 Kg. and more than three feet in length.
ADJUSTABLE AND FIXED TOOLING CAPACITIES
Model
Number
Total Rod
Capacity
Crank End
Capacity
Min. C-C
Distance
Max. C-C
Distance
Max. Crank
Width
Display
Resolution
21-203 1000
grams
500
grams
115 mm 220 mm 100 mm 0.1 g
21-204 2000
grams
1000
grams
115 mm 220 mm 100 mm 0.2g
21-206 4000
grams
2000
grams
150 mm 250 mm 150 mm 0.5g
21-208 10,000
grams
5000
grams
200 mm 300 mm 200 mm 1.0g
ADJUSTABLE TOOLING ONLY
Model
Number
Min. C-C
Distance
Max. C-C
Distance
Min. Crank
Diameter
Max. Crank
Diameter
21-203 115 mm 220 mm 45 mm 115 mm
21-204 115 mm 220 mm 45 mm 115 mm
21-206 150 mm 250 mm 55 mm 144 mm
21-208 200 mm 300 mm 70 mm 170 mm
FIXED TOOLING SYSTEMS
Pricing: includes tooling for one machined conrod.
21-203-F 21-204-F 21-206-F 21-208-F
$13,375.00 $13,375.00 $14,875.00 $14,875.00
ADJUSTABLE TOOLING SYSTEMS
Pricing: includes adjustable tooling for a family
of machined conrods.
21-203-U 21-204-U 21-206-U 21-208-U
$18,437.00 $18,437.00 $19,975.00 $19,975.00

TOOLING/FIXTURING!

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STANDARD FIXED TOOLING
Typical Small Cradle (Tooling)


(typical fixed tooling and cradle)

Custom designed tooling assemblies which properly locate the connecting rods are designed and manufactured per customer requirements and are quoted on a per job basis.
  • Each set of tooling is quoted only after seeing a drawing of the rod.
    • Reference points must be clearly defined
  • The aggregate error is usually less than 0.001"
  • Changing from one set of tooling to another is an easy 6 step process.
    1. Remove present tooling – four screws.
    2. Move the cradle centers to approximately the c-c distance of the next tooling.
    3. Place the span plate, crank end tooling, and the pin-end tooling in place
    4. Refasten the four screws.
    5. Set final alignment of the cradle.
    6. Adjust the counter-weights as necessary.
UNIVERSAL ADJUSTABLE TOOLING
Typical adjustable tooling


(typical adjustable tooling cradle)

Universal tooling allows the user to weigh prototype rods, single engine rods, or a family of rods with no expensive tooling or tooling changes. Only a simple set-up is required.
  • Set-up is a simple 6 step process.
    1. Loosen the cradle clamps.
    2. Set the Center to Center of the tooling using the provided vernier.
    3. Snug the cradle clamps.
    4. Adjust the pin-end locating pins until the rod fits easily down past the pins.
    5. Adjust the crank end locating pins until the rod is approximately level.
    6. Check for final alignment of the cradle.
AUTOMATED CONNECTING ROD SCALES
Automated Conrod Scale System


(typical automated scale system)

  1. We can design any configuration needed to match your production.
  2. We typically use pick and place units to move the rods to and from the scale.
  3. We can sort, good-bad, or sort to a number of classes.
  4. This arrangement has been used mostly with powdered metal rods.
Automated Conrod Scale System

MASTER ROD!

MASTER ROD FOR YOUR CONROD SYSTEM
ADVANCE WEIGHT SYSTEMS can supply a CERTIFIED connecting rod "Master", balanced to a customer specified weight condition. The customer must supply a rod machined to drawing tolerance to all dimensions with the crank and pin end overweight. The "Master" rods will be bright nickel plated and sealed to the accuracy specified. We provide a custom wooden storage box and certificates of weight and accuracy.

AWSI-21-METER ~ ELECTRONIC INTERFACE!

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CAN BE USED WITH ANY TWO-WEIGH-CELL CONROD SCALE BASE

AWSI-21 Meter
STANDARD FEATURES:
  • PLC driven meter
  • Hign Visibility Back-Lit Color LCD Display
  • HMI Touch Screen
  • Zero Tracking , On or Off
  • Full Digital Front Panel Calibration
  • Displayed:
    • Displays the CRANK END and PIN END Weight simultaneously.
    • Displays the TOTAL Weight
    • Displays System Information
    • Displays Simple Stats of the Part on the Weigh Cell
  • Positive "TARE" for the Unique AWS "Mass Balance" Weighing Method
  • Standard "TARE" for the Standard Method of Weighing
  • RS-232C or Rs-485 Serial Port Prints out
  • Unique Digital Filtering Technique will not Slow Down the Digital Sampling
  • Front Panel "ZERO", "PRINT"
SPECIFICATIONS:
Calibration:On-screen, Display prompted
Internal Resolution:18 bit
Thermal Stability:<0.004% °C, Zero and Span
A/D Conversion Rate:10,000 samples per second
Common Mode Rejection:140db, 0-60 Hz
Operating Temperature:0°C. to 50°C
Power:115 VAC, 50-60 Hz, 12 Watts
Linearity:4 break points, plus zero
External Resolution:Up to 20,000
Count By:1, 2, or 5
Display Rate:2½ readings per second
Sensitivity:2mv/v to 5mv/v
Communications:RS–232C, RS–485, TCP/IP
Function Keys:5 – Pre-Programmed

CALIBRATION / LINEARIZATION: MENU DRIVEN
Crank End And Pin End Are Calibrated Independent Of Each Other:

HMI Calibration Touch Screen
ZERO CALIBRATE
HMI Calibration Touch Screen
FIRST POINT
HMI Calibration Touch Screen
SECOND POINT
HMI Calibration Touch Screen
THIRD POINT
HMI Calibration Touch Screen
FULL SCALE
HMI Input Touch Screen
FULL NUMERIC KEYBOARD

A TYPICAL INSTALLATION!

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Typical Instalation



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