Pace Technologies PENTA 5000A User manual

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
Equipment Type: Five station hand grinder
Model: PENTA 5000A
Electrical Requirements: N/A
Frequency: N/A
Motor Horsepower: N/A
Manual Revision Date: November 1, 2023

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
Contents
PAGE
Warranty i
1.0 Safety Guidelines 1
2.0 Product Description 2
3.0 Unpacking, Shipping, and Installation 4
4.0 Start-Up and Operation 6
5.0 Maintenance 9
6.0 Troubleshooting 10
7.0 Metallographic Consumables 11

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
WARRANTY
Terms and Conditions applying to all PACE Technologies Products
1. LIMITED WARRANTY AND DISCLAIMER:
PACE Technologies Products are warranted for two years from the purchase date to be free from defects
in material and workmanship under correct use, normal operating conditions, and proper application.
PACE Technologies obligation under this warranty shall be limited to the repair or exchange, at PACE
Technologies option, of any PACE Technologies Product or part which proves to be defective as provided
herein. PACE Technologies reserves the right to either inspect the product at Buyer’s location or require it
to be returned to the factory for inspection. Buyer is responsible for freight to and from factory on all
warranty claims. The above warranty does not extend to goods damaged or subjected to accident, abuse
or misuse after release from PACE Technologies warehouse, nor goods altered or repaired by anyone
other than specifically authorized PACE Technologies representatives. PACE Technologies shall not in
any way be responsible for the consequences of any alteration, modification or misuse unless previously
approved in writing by an officer of PACE Technologies. Note: Corrosion is considered a maintenance
issue and not a warranty issue.
PACE TECHNOLOGIES MAKES NO EXPRESS WARRANTIES OTHER THAN THOSE WHICH ARE
SPECIFICALLY DESCRIBED HEREIN. Any description of the goods sold hereunder, including any
reference to Buyer’s specifications and any description in catalogs, circulars and other written material
published by PACE Technologies, is the sole purpose of identifying such goods and shall not create an
express warranty that the goods shall conform to such description.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR
IMPLIED. THERE ARE NO IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR
PARTICULAR PURPOSE. THIS WARRANTY STATES PACE TECHNOLOGIES ENTIRE AND
EXCLUSIVE LIABILITY AND BUYER’S EXCLUSIVE REMEDY FOR ANY CLAIM FOR DAMAGES IN
CONNECTIONS WITH PACE TECHNOLOGIES PRODUCTS. PACE TECHNOLOGIES WILL IN NO
EVENT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES WHATSOEVER, NOR FOR
ANY SUM IN EXCESS OF THE PURCHASE PRICE.
2. LIABILITY CAP:
PACE Technologies maximum aggregate liability for loss and damage arising under, resulting from or in
connection with the supply or use of the Equipment and Consumables provided under this purchase, or
from the performance or breach of any obligation (s) imposed hereunder, whether such liability arises
from any one or more claims or actions for breach of contract, tort, (including negligence), delayed
completion, warranty, indemnity, strict liability or otherwise, unless otherwise limited by the terms
hereof, shall be limited to one hundred percent (100%) of the purchase price.
3. DELIVERY:
Customer assumes and shall bear the risk of all loss or damage to the Products from every cause
whatsoever, whether or not insured, and title to such Products shall pass to Customer upon PACE
Technologies delivery of the Products to the common carrier of Pace Technologies choice, or the carrier
specified in writing by Customer, for shipment to Customer. Any claims for breakage, loss, delay, or damage
shall be made to the carrier by the Customer and Pace Technologies will render customer reasonable
assistance in prosecuting such claims.
i

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
4. ACCEPTANCE:
Customer shall inspect the Products promptly upon receipt of delivery. Unless customer objects in writing
within thirty (30) business days thereafter, customer shall be deemed to have accepted the Products. All
claims for damages, errors, or shortage in Products delivered shall be made by Customer in writing
within such five (5) business day period. Failure to make any claim timely shall constitute acceptance of
the Products.
5. PAYMENT:
Customer agrees to provide timely payment for the Products in accordance with the terms of payment
set forth on the reverse side hereof or in any proposal submitted herewith. If any payment is not paid on
or before its due date, Customer shall pay interest on such late payment from the due date until paid at
the lesser of 12% per annum or the maximum rate allowed by law.
6. DEFAULT:
If Buyer is in default (including, but not limited to, the failure by Buyer to pay all amounts due and
payable to Seller) under the work or purchase order or any other agreement between Buyer and Seller,
Buyer ’s rights under the warranty shall be suspended during any period of such default and the original
warranty period will not be extended beyond its original expiration date despite such suspension of
warranty rights.
7. MISCELLANEOUS PROVISIONS:
This agreement has been made in and shall be governed by the laws of the State of Arizona. These terms
and conditions and the description of the Products on the reverse side hereof or in any proposal submitted
herewith constitute the entire agreement and understanding of the parties with respect to this sale and
supersede all prior and contemporaneous agreements or understandings, inducements or representations,
expressed or implied, written or oral, between the parties with respect hereto. Any term or provision of this
Agreement may be amended, and any observance of any term of this Agreement may be waived, only by a
writing signed by the party to be bounds. The waiver by a party of any breach shall not be deemed to
constitute a waiver of any other breach. Should suit be brought on this Agreement, the prevailing party shall
be entitled to recover its reasonable attorneys’ fees and other costs of suit including costs and attorneys’
fees incurred on appeal or in collection of any judgment., errors, or shortage in Products delivered shall be
made by Customer in writing within such five (5) business day period. Failure to make any claim timely
shall constitute acceptance of the Products.
8. RESTOCKING FEE:
All Returns are subject to a restocking charge equal to 15% (fifteen percent) of the Invoice, unless the
ii

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ▲ INSTRUCTION MANUAL
3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
1.0 Safety Guidelines
1.1 Warning Sign
!This sign points to special safety features on the machine.
!Operate unit as specified in this manual.
!Do not leave any specimen or other parts on the working wheel.
!When unit is not in use, turn off water.
!Securely hold the sample, preferably with two hands.
1.2 Safety Precautions
1
!Careful attention to this instruction manual and the recommended safety guidelines is
essential for the safe operation of the PENTA 5000A.
!Proper operator training is required for operation of the PENTA 5000A. Any
unauthorized mechanical and electrical change, as well as improper operation, voids all
warranty claims. All service issues need to be reported to the manufacturer / supplier.

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
2.0 Product Description
2.1 General Description
2
Grinding
surfaces
Water valve
The PENTA 5000A is a 5-station hand-grinder for manual wet grinding of metallographic
specimens.
With 5 stations for coarse to fine grinding papers (240, 360, 400, 600, 800 and 1200 grit),
specimens can be prepared to a near-polished surface. The surface quality after 1200 grit is
typically acceptable for heat-treated and weld analysis specimens.
Lifting handle for
changing paper

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
2.2 Technical Specifications
Electrical specifications: N/A
Roll sizes: 3-7/16” width x 60-feet length with
1-inch core
Motor power: N/A
Weight: Approx. 62 lbs (28 kg)
Dimensions (WxDXH): Approx. 21.5” x 24” x 9”
(550 mm x 610 mm x 230 mm)
Working temperature: 32° - 100°F (0 - 40°C)
Shipping temperature: 32° - 100°F (0 - 40°C)
Storage temperature: 32° - 100°F (0 - 40°C)
Maximum diameter sample 2.5” (65 mm)
Construction Aluminum casting and stainless
steel
3
EU Directives: Machinery directive 2006/42/EC
Low Voltage Directive 2006/95/EC
Electromagnetic Compatibility directive 2004/108/EC
EU Harmonized Standards: EN ISO 1200:2010
EN 61010-1:2010
EN 61326-1:2006

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
3.0 Unpacking, Shipping and Installation
3.1 Unpacking Unit is delivered in a box. Unpack and check for completeness of
parts.
Measures WxHxD: 23” x 11” x 25”
Weight: Varies, depending upon model
(approximately 70 lbs).
3.2 Shipping When moving box, lift from bottom.
! Caution: Heavy equipment. Take care to avoid bodily injury.
4

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
3.3 Installation
!
Install unit carefully! Improper installation voids warranty.
The PENTA 5000A should be placed on a flat stable surface.
Connect to water supply and drain.
After water and drain are connected, the system is ready for operation.
5
Backside connections
External water supply: The water supply line requires a 1/4-inch compression fitting. It is
recommended that the water supply be turned off when the unit is
not in use. Inlet water should be clean and contamination-free to
extend the life and performance of the systems.
Water drain
Water inlet
connector
Attach water and drain connections depending on drain location Attach drain hose

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
Lower guide plate
with handle
Load pin into roll and
into holder
Lift paper retaining guides with
handle
Roll pin
4.0 Start-up and Operation
4.1 General
4.2 Loading Rolls
The PENTA 5000A is a hand-grinding/polishing machine.
Fold paper at
the end and
feed paper
over bar
Grinding
surfaces
Water valve
6
Lifting
Arm
Feed
paper on
support
plate
Tear off
excess paper

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
4.4 Metallographic Specimen Preparation Basics
A typical metallographic specimen preparation consists of the following basic steps:
Preparation Stage Purpose
Initial documentation: • To document the initial condition of the sample
• To map the sample surface
• To highlight the area of interest
Sectioning / cutting: • To reduce the size of large samples
• To sample the specimens close to the area of interest.
Rough or planar grinding: • To obtain a planar surface
• To remove sectioning damage
• To approach the area of interest
Rough polishing: • Ideally to remove all the subsurface damage and microstructural
damage produced during cutting and rough grinding (Superficial
scratches may still be present after this step).
Final polishing: • Generally, more for cosmetic purposes than for removing
microstructural damage. In most cases, this stage should be
minimized to avoid overpolishing and distorting the
microstructural features.
Etching: • To enhance microstructural features such as grain boundaries,
grain size, phase differences, etc.
Examination: • A variety of examination techniques are used in metallography,
including: optical microscopy, electron microscopy and hardness
testing.
7

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
8
Educational Etchant Database online at:
https://database.metallographic.com/pace-etchant.php

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
5.0 Maintenance
5.1 Introduction
9
5.2 Cleaning outside cabinet
The PENTA 5000A requires very minimal maintenance. However, to increase the life of the
polisher, it is suggested that the unit be rinsed after use.
The cabinet should be cleaned occasionally with a moistened cloth. Do not use any chemicals
or cleaning abrasives.

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
6.0 Troubleshooting
10
Problem Cause Solution
No water supply a. Water valve closed a. Open valve
b. Water tube is kinked b. Straighten out water tube
Water leaking a. Drain hose plugged a. Clean drain hose
b. Unit not tilted properly b. Adjust front feet for proper
draining

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
7.0 Metallographic Consumables
60-grit SiC
240-grit SiC
1200-grit SiC
600-grit SiC
400-grit SiC
2-dimensional line profile 3-D optical contour mapping
11
7.1 SiC Abrasive Paper, Surface Roughness

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3601 E. 34th St. Tucson, AZ 85713 USA Tel. [phone] Fax [phone] email: [e-mail] Web: https://www.metallographic.com
Please read this instruction manual carefully and follow all installation, operating and safety guidelines.
PENTA 5000A Hand Grinder
8.0 List of Spare Parts
12
Part No. Quantity Description
SIC-240R-60 Each 240-grit SiC (3-7/16” wide, 60’ length, 1” core)
SIC-320R-60 Each 320-grit SiC (3-7/16” wide, 60’ length, 1” core)
SIC-360R-60 Each 360-grit SiC (3-7/16” wide, 60’ length, 1” core)
SIC-400R-60 Each 400-grit SiC (3-7/16” wide, 60’ length, 1” core)
SIC-600R-60 Each 600-grit SiC (3-7/16” wide, 60’ length, 1” core)
SIC-800R-60 Each 800-grit SiC (3-7/16” wide, 60’ length, 1” core)
SIC-1200R-60 Each 1200-grit SiC (3-7/16” wide, 60’ length, 1” core)