Pace Technologies PENTA-7500S User manual

PENTA-7500S Belt Grinder
INSTRUCTION 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.
Equipment Type:
Belt Grinder
Model:
PENTA-7500S
Electrical Requirements:
110 / 220 Volts
Frequency:
50 / 60 Hz
Motor Power
0.75hp
Manual Revision Date:
November 1, 2023

PENTA-7500S Belt Grinder
INSTRUCTION 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.
i
Contents Page
Warranty ii
1.0 Product Description 1
2.0 Unpacking, Shipping, and Installation 3
3.0 Safety Guidelines 5
4.0 Start-Up and Operation 6
5.0 Maintenance 10
6.0 Trouble Shooting 11
7.0 Metallographic Consumables 12
8.0 Spare Parts 14

PENTA-7500S Belt Grinder
INSTRUCTION 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.
i
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.

PENTA-7500S Belt Grinder
INSTRUCTION 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.
i
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.
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.

PENTA-7500S Belt Grinder
INSTRUCTION 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.
i
iii
7. MISCELLANEOUS PROVISIONS:
This agreement has been made in and shall be governed by the laws of the State of Arizona. All
disputes arising under or relating to the purchase of the equipment shall be brought and
resolved solely and exclusively in the State of Arizona, Pima County. 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 Goods are proved to be non-conformed by PACE Technologies

PENTA-7500S Belt Grinder
INSTRUCTION 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-7500S Belt Grinder
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.
1
1.0 Product Description
1.1 General Description
The PENTA 7500S is a single belt hand grinder for coarse grit specimen planarization. A unique
benefit of the PENTA-7500S belt grinder is the fixture for planarizing specimen mounts. This is
very important for maintaining a square mount for automated polishing machines.
Another benefit is a high 0.75 horsepower motor that is capable of running the belt with enough torque to
remove material from any sample.
A rinse station also allows for the sample to be easily cleaned after grinding.
Easy Remove
Sample holder
Water Flow Control
Flex Hose Faucet
On/Off Switch

PENTA-7500S Belt Grinder
INSTRUCTION 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.
2
1.2 Technical Specifications
Electrical Specifications:
110 / 220 Volts, 50 / 60 Hz
Roll Sizes: 4-inch width x 36-inch length
Motor Power 0.75 hp (550W)
Machine Weight: Approx. 112lbs (50 kg)
Dimensions (W x H x D): Approx. 19.5 x 22 x 16-inches
(495 mm x 560 mm x 410 mm)
Working Temperature: 32° - 100°F
(0 – 40°C)
Shipping Temperature: 32° - 130°F
(0 – 54°C)
Storage Temperature: 32° - 100°F
(0– 40°C)
Belt Speed: 43 ft/second (13m/s)
Construction: Fabricated Steel with stainless steel components to
reduce corrosion

PENTA-7500S Belt Grinder
INSTRUCTION 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.
3
2.0 Unpacking, Shipping and Installation
When moving machine, lift by the base.
The PENTA-7500S is constructed with sensitive
electronic and mechanical components.
DO NOT DROP.
!
Caution: Use care when moving machine
The PENTA-7500S is shipped in a customized box. Unpack the foam, which is covering
the machine, from the box. Then remove the unit from the remaining foam.
2.1 Unpacking
2.3 Installation
!
Install unit carefully! Improper installation voids warranty.
The PENTA 7500Sshould be placed on a flat stable surface.
Connect to water supply, drain and electrical outlet (110V or 220V, note voltage has
been prewired at the factory). After water and drain are completed, the system is ready
for operation.
2.2 Shipping
Measures WxDxH: 21" x 29" x 22" (535 x 740 x 560 mm)
Weight: Weight with crate (approximately 140 lbs).

PENTA-7500S Belt Grinder
INSTRUCTION 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.
4
! Careful attention to this instruction manual and the recommended safety
guidelines is essential for the safe operation of the PENTA 7500S.
!
Proper operator training is required for the operation of the PENTA 7500S. 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.
! Operate unit as specified in this manual
! Do not leave any specimen or other parts on the working surface
! When unit is not in use, turn off the water
! Securely hold the sample, preferably with two hands when not using the specimen holder
3.0 Safety Guidelines
3.1 Warning Sign
!
This sign points to special safety features on the machine
3.2 Safety Precautions

PENTA-7500S Belt Grinder
INSTRUCTION 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.
5
4.0 Start-Up and Operation
4.1 General
The PENTA-7500S is a belt grinder specifically designed for metallographic sample
planarization.
4.2 Loading Belts
Easy Remove
Sample holder
Water Flow
Control
Flex Hose
Faucet
On/Off Switch
1. Open the side panel of the PENTA-
7500S and locate the pull arm.
2. Rotate the pull arm to move the front
wheel and release tension on the belt.
Emergency
Stop Button

PENTA-7500S Belt Grinder
INSTRUCTION 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.
6
4.3 Mounting Specimens in Fixture
3. Remove the belt by sliding it
off the wheel
4. Locate new belt
5. Slide new belt on and
reposition pull arm to re-
tension the belt
1. Remove
Holder by
loosening screw
and sliding it out
of the slot
2. Insert sample
into the correct
sample size
holder using the
loading plate
and tighten
screws to hold
the specimen
mount
3. Slide Holder
back into the slot.
Push down on
handle to apply
pressure to sample
while grinding
PENTA-7500S holder
Catalog No.
1-inch
P75-SH-100
1.25-inch
P75-SH-125
1.5-inch
P75-SH-150
2-inch
P75-SH-200
25 mm
P75-SH-25
30 mm
P75-SH-30
40 mm
P75-SH-40
50 mm
P75-SH-50

PENTA-7500S Belt Grinder
INSTRUCTION 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.
7
4.4 Grinding Samples
After mounting the sample and placing the sample holder inside the slot start the
machine. Activate the water and adjust flow to preferred levels. Push down on the
sample holder handle to apply pressure to the sample. Do not move sample holder
back and forth during grinding.
The holder is spring enabled. If pressure is released to sample will not grind on the
paper
Pressure

PENTA-7500S Belt Grinder
INSTRUCTION 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.
8
Preparation Stage
Purpose
Initial Documentation
•Document the initial condition of the sample
•Map the sample surface
•Highlight the area of interest
Sectioning/Cutting
•Reduce the size of large samples
•Reduce sample size closest to the area of interest
Rough, or Planar
Grinding
•Obtain a planar surface
•Remove sectioning damage
•Approach the area of interest
Rough Polishing
•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 over polishing and distorting the
microstructural features
Etching
•To enhance microstructural feature 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
4.4 Metallographic Specimen preparation Basics
Typical metallographic specimen preparation consists of the following steps:

PENTA-7500S Belt Grinder
INSTRUCTION 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.
9
5.0 Maintenance
5.1 Introduction
The PENTA 7500Srequires very minimal maintenance. However, to increase the life
of the grinder, it is suggested that the unit be rinsed after use.
5.2 Cleaning Inside Cabinet
The inside of the cabinet where the belt mechanism is located should be cleaned and
dried to avoid possible corrosion. It is advised to leave the side panel open when
finished using the machine to reduce humidity and allow air flow. Do not use chemical
or cleaning abrasives on the inside of the cabinet.
5.2 Cleaning Outside Cabinet
The outside cabinet should be cleaned occasionally with a moist cloth. Do not use
any chemicals or cleaning abrasives while cleaning.

PENTA-7500S Belt Grinder
INSTRUCTION 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.
10
Problem Cause Solution
No water supply
1. Water valve closed
2. Water tube is extremely bent
1.Open the water valve
2.Straighten out water tube
Water leaking
1. Door is not closed
completely
2. Drain hose plugged
3. Unit not tilted properly
4. Water flow is too high
1. Ensure nothing is blocking
door from closing
2. Clean drain hose
3. Adjust front feet to slope
towards drain hole
4. Reduce water flow to allow
system to drain properly
6.0 Trouble Shooting
More extensive troubleshooting, repair guides, videos, and parts lists are provided
online at metallographic.com.
Feel free to contact a PACE Representative at [phone]

PENTA-7500S Belt Grinder
INSTRUCTION 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.
11
7.0 Metallographic Consumables
7.1 Abrasive Paper, Surface Roughness

PENTA-7500S Belt Grinder
INSTRUCTION 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.
12
Part No. Quantity Description
ZrO2-B060 5/box
Long lasting durable 60 grit zirconia grinding belt,
recommended for course grinding (4”x36”)
Zr02-B120 5/box
Long lasting durable 120 grit zirconia grinding belt,
recommended for course grinding (4”x36”)
ALO-B120 5/box 120 grit, moderate life alumina belt (4”x36”)
SIC-B60 10/box 60-grit SiC belt (4”x36”)
SIC-B80 10/box 80-grit SiC belt (4”x36”)
SIC-B120 10/box 120-grit SiC belt (4”x36”)
SIC-B180 10/box 180-grit SiC belt (4”x36”)
SIC-B240 10/box 240-grit SiC belt (4”x36”)
SIC-B320 10/box 320-grit SiC belt (4”x36”)
SIC-B400 10/box 400-grit SiC belt (4”x36”)
SIC-B600 10/box 600-grit SiC belt (4”x36”)
7.2 Replacement Belts
Various Belt Types