Footwear Tester Bid for the Federal Technical and Vocational Training Institute
On September 14th last year, we wrote an article about Tender for Leather Tester at The Federal Technical and Vocational Training Institute. The machines in the article were not comprehensive, and only included three machines: Soling materials abrasion machine, Whole sole flexing machine, and Shoe lace abrasion machine (Lace to eyelet method). Some readers are curious about what other machines there are, and I will introduce them below.
Contents
Bata belt flexing machine
determine the severity of the flexing action. Equipment should be supplied complete with three small pulleys of varying diameters to increase or decrease the amount of flexing. endless belt that accommodate six sole units, subject to the style and size. Sole units bonded to the belt using a strong adhesive. belt made of canvas and construction allows the number of complete cycles to be counted which is equal to the number of flexes of the test sample. The flexing area is provided with a full guard interlocked with the machine controls to ensure the guard cannot be opened until the belt has stopped. machine should be suitable for the testing of all shoe sole units and should be used with other flexible materials.
Standards: SATM, ISO, DIN, SATRA.
specifications
Belt Dimension: Length: 1930±50mm, Width: 140±5mm,
Speed: 90±8 cycles/min,
Big Wheel Diameter: 225±5mm,
Small Wheel Diameter: 60±0.5mm, 90±0.5mm, 120±0.5mm,
Capacity: Max 6 sole,
Counter: Touch Screen, 0-999,999,
Noise: 67 db,
Dimension(W×D×H)mm: (1450×600×600)mm,
Weight : 170kg,
Power Supply: AC 220 V ± 10%, 50Hz/60Hz,
Power consumption: 400W.
General requirement
The machine shall be equipped with three freewheeling slightly crowned flexing roller (inter changeable), a driven slightly crowned roller, a flexible continuous belt of cotton canvas, a motor driving the larger roller at a speed of 247 rev./min. so that the belt completes 90 flexing cycles/minute, a programmable digital counter supplied with operating instructions, maintenance instruction, conformity/calibration certificate for recognized/accredited organization, canvas belt, 3 interchangeable rollers (60,90,120 mm).
Accessories
Flexible continuous belt of cotton canvas (1930+/- 50) mm and width (140 ±5) mm.
Cotton canvas is 2-ply 100% cotton having a mass per area of (500±25) g/m2 the extension at break along the belt of (14±2) % at a breaking. Force of (2000 ± 200) N. The corresponding across-the belt values are (14±) % and (750±50) N.
Additional requirements
The machines have to be international certificate equipped with all characteristics of actual rules. Electrical Supply connections: Matching to Ethiopian supplies (230 volts/50hz). Warranty: at least 2 years, service for at least 2 years, installation,
Whole shoe flexing Machine (Dry & Wet)
whole shoe flexing machine designed to determine the resistance of shoe during flexing. . machine should be supplied in both single or twin station formats and the action simulates the flexing of footwear during wear. The angle of flex should be adjustable up to 50°.
Footwear should clamped to the machine at the toe end using the appropriate toe clamp. heel end secured to the flexing bar. A predetermining counter fitted. moving parts of the machine should be covered by a hinged guard which is fitted with the latest safety device to prevent access while the machine is still in use. machine should robust and non- corrosive materials used where applicable in its construction. Standards: SATM, ISO, DIN, SATRA.
General requirement
to determine the resistance of whole shoe in dry and wet during flexing and allows assessing several important aspects. The samples or specimen to be tested using the machine includes all types of footwear. The tester shall flex the footwear in dry and water contained in a clear polycarbonate tank. The tester shall be equipped with twin station machine comprising two separate tanks and two independent flexing mechanisms and each station shall have an independent control to raise and lower the footwear in and out of the tank. The machine shall be both dry and wet flexing interface. List and quantity of all necessary spare part supplied to run the machine in both dry and wet condition. Adjustable flexing angle 0-100º. Additional requirements: The machines have to be international certificate equipped with all characteristics of actual rules. Electrical Supply connections: Matching to Ethiopian supplies (230 volts/50hz).
Internal shoe size gauge
Internal shoe size gauge designed to determine the size of footwear. flat bar inserted in the shoe and pushed into the toe. Movable slider along the scale until the curved bar touches the heel. longest length should be found by moving the device vertically and locating the curved bar to the point of maximum heel curvature. size of the footwear read off the scale. four versions of the internal shoe size gauge which cover the adults’ sizes 11-14 and children’s sizes 3-7, Adults’ scale in English sizes, Adult’s scale in millimetres, Children’s scale in English sizes, Children’s scale in millimetres. Scales: English shoe sizes and millimetres, Material: stainless steel, Weight: each 250 gms. Standards: SATM, ISO, DIN, SATRA. Additional requirements: The shoe size gauge have to be international certificate equipped with all characteristics of actual rules.
Tensile testing machine
Tensile testing machine designed to conduct tensile, compression, bending, shearing, bonding strength, peeling, tearing tests for leather, rubber, plastic, metal, nylon, fabric and other materials. It should have twin-column model with reliable mechanics incorporating digital software control.
used for research, quality and process control to test the tension, compression, peel, shear, tear, puncture and adhesion, with operating software and colour printer, capable for measuring tensile and compressing forces up to 20 KN, High precision guidance having operating software, capable for operating at a constant continuous speed up to maximum force (0.001 up to 500 ± 10) mm/min, test area at least. 400 x 1400 mm, automatically detection of adjustment and calibration- electronic system and software, compressive sensor at least 20.0 KN circular type, stable against transversal forces min class I. Adopt AC servo drive system, gear reducer, synchronous pulley, precision ball screw components beam move stable with low noise and high precision of extension. aluminium alloy column shell, deal with high temperature and solidify injection on the machine surface should never fade.it should have beam’s limit cams protecting device, clamp touch avoids protecting device, set up protection on displacement and load software, sensor overload protection, sample load software protection, overcurrent and overvoltage protection real time supervision to main parts, adopt open system, user should edit test program, data analysis formula, test report according to test material’s category, character and test methods requires. It should provide many kinds of humanity automatic mode. electronic clamp, trial initiation should set as clamp grip auto-start or pre-tension auto grip start. It should set as clamp auto open after finished test. It must be computerized testing machine also should set clamping distance and auto location. The distance of scraping capable set freely.
Standards: SATM, ISO, DIN, SATRA.
Test Speed: 0.001- 1000mm/min, up and down fast adjustment button grips,
Stop Mode: Overload stop, Emergency stop button, Specimen damage automatic stop, Upper and lower limit set automatic stop, automatic return function,
Display: Computer display mode,
Force unit switch: Kgf, N, Ibf, g, ton, Mpa,
Dimensions (LxWxH) mm: 820x630x1600mm,
Weight: 150 to 200 Kg.
Desktop computer: Desktop digital computer cover with range 0 to 25 mm with 0.01 mm resolution,
Upload speed: Automatically controlled: 0.02 MPa / min to 250 MPa / min.
Feed speed: Automatically controlled: 0.001 mm / min to 300 mm / min.
Desktop feature 27″ 4K Ultra HD vivid display. all-in-one desktops.
Dimensions:17”x24.6” x3.16”,
Processor: 7th Gen or above. Intel Core i7 -7700 (8MB cache) 3.6 GHz.
Operating System: Windows 10 Professional – 64bit.
Storage Capacity: 16GB/32GB, 2400MHz, DDR4.
Hard Drive Details: 512GB PCIe SSD.
Video Card: AMD RX 570 8GB GDDR5.
Optical Drive: Tray Loading Dual Layer DVD Burner.
Security Software: McAfee LiveSafe 12 Month /36- month Subscription.
Hard Ware(S) Info: Keyboard: Wired/ Wireless, Mouse: Wired/ Wireless, Ports/slots: 4 x USB 3.0. HDMI-out, DisplayPort 1.2, 2 x Thunderbolt 3 (supports Type-C, USB3.1, DisplayPort, PS), Gigabit Ethernet, audio out.
Connections: Wireless: 802.11ac,
Bluetooth: 4.2,
Web Cam: HD 720p.
Colour multifunction printer: Colour multifunction printer designed to colour print on the paper, A 50-sheet single-pass duplex automatic document feeder handles media sizes from 5.5 x 5.5 in. to 8.5 x 14 in. / 139.7 x 139.7 mm to 216 x 356 mm. Powerful scanning features include the ability to create searchable PDFs with integrated optical character recognition (OCR), Scan to Email, Network Scanning and Direct Scan to Applications. A front-side USB port to any standard USB memory device. Adjustable 50-sheet Bypass Tray accepts custom media sizes 3 x 5 in. -8.5 x 14 in. / 76 x 127 mm to 216 x 356 mm. 250-sheet Tray 1, custom media sizes 3 x 5.8 in. – 8.5 x 14 in. / 76 x 147 mm to 216 x 356 mm. 550-sheet Tray 2.
Operating software to test: Test and control system designed for PC Electronic Universal Testing Machines, PC Hydraulic Universal Testing Machines and PC compression testers. conduct tensile, compression, bending, shearing, tearing and peeling test; use PC and interface board for data collection, preservation, processing and printing test result; calculate max force, yield strength, average peeling force, max deformation, yield point, elastic modulus and other parameters. Conduct curve graphics processing, multi- sensor support, video and image interface, flexible data processing, MS-access database support.. Ready-to-load software (specific to test methods) together with test- specific jaws should be provided for a wide range of tests.
Fully programmable for registration trials. Time graphical actual strength / resistance / strain / displacement vs. weather; strength / endurance vs. time deformation. Sampleload resistance, deformation / displacement and loading rates, strength and deformation / displacement. Calculate breakpoint, maximum load and deformation or elongation. Testing tensile strength, modulus of elasticity and yield point. Graphic actual resistance vs. time Deformation. Automatic calculation of standard reports results.
Accessories
- 1set English Operation Software,
- 1set Cable Connect with PC,
- 1set Computer with colour printer,
- 1set Load Cell: instrument should be supplied with one set of 2 kgf load cell, one set of 5 kgf load cell, one set of 10 kgf load cell.
- One of set Pneumatic Grips: Test-specific jaws (wide range of tests):
- A specially shaped ‘C’ clamp in the peel strength testing of footwear sole to upper, general- purpose clamp. Top clamp provided (used in conjunction with bottom clamp),
- Tests the protective midsole as a separate unit for nail penetration. Supplied as jaw set (top and bottom),
- Test the ‘needle tear test’, device should allows sample material to be clamped and a series of needles pushed through the material. Bottom clamp provided (used in conjunction with a top clamp),
- Test the ‘Baumann tear test’. a pair of jaws,
- Thread bollards to determine the breaking load of threads and laces. a pair of jaws,
- The top-line bollards to determine breaking force and extension at break of whole shoe top-lines a pair of jaws,
- Transverse through thickness, tensile strength through thickness of sheet materials, (‘AZ tensile test’), jaw set (top and bottom),
- A versatile, standard, flat jaw, used for a variety of general-purpose clamping. Sold individually (normally a pair would be required),
- determine the strength of footwear insole board, a complete unit,
- Test the strength of adhesion of the finish to the leather or synthetic material. It should have hook attached to one jaw and a sample holder to the other,a jaw set (top and bottom),
- Measure the strength of attachment of heel to shoe. Bottom clamp provided (used in conjunction with a top clamp),
- assess the strength required to pull a nail from the heel of footwear. a pair of jaws,
- An attachment footwear lastometer tests carried out to check the burst or crack strength as a complete unit
- assess the attachment strength of the shoelace tag to the lace. Top clamp provided (used in conjunction with a bottom clamp),
- tests a wholesole unit, complete with protective midsole, for nail penetration, jaw set (top and bottom)
- A unique self- locking jaw with a quick release action that should be used as a general-purpose clamp for many duties.
- Instruments should be supplied at least the following cutting dies: Single edge cutting dies for all test sample preparation 2pcs according to the standards, 2pcs of digital vernier calliper with a stainless body,
- Battery operated (Button cells)
- fitted with LCD display, accuracy of 0.01mm, switch for display of Metric (mm) and British (Inch) units,
- Jaws for measuring internal diameter of 150 mm,
- Jaws for measuring external diameter of 150 mm,
- Blade for measuring depth of 150 mm,
- Display On/Off control switch,
- Zero setting switch for self- calibration,
- Locking screw for movable jaw,
- Protection storage box,
- 2pcs of steal ruler(15 cm), accuracy to 0.1mm, range 0.1mm- 30mm,
- 20pcs press knife (cutter) small with blade.
