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Bowers W-R135 Surface Roughness Tester

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Bowers W-R135 Surface Roughness Tester
Ex. VAT £1,769.50 Inc. VAT £2,123.40

Usually ships within 4 working days with Free Shipping



• Handheld surface roughness tester for external surfaces and grooves.
• Portable, battery-powered instrument for checking surface roughness, with the measured values displayed on a digital readout display.
• Can be used in laboratory, inspection area, workshop, or wherever on-site surface roughness testing is required.
• Pocket-sized and economically priced!
• External and internal finish testing with swivable tracer.
• Ra and Rz parameters in one instrument and all available after each individual test.
• Standard 9V battery (not included).
• Three cut-off 0.25mm, 0.8mm and 2.5mm, adjustable to 1-3-5 times.
• Pi‘zo-electric pick-up stylus for external surfaces with diamond tip of 2 micron according to the latest ISO standards.
• With data output.



Measuring ranges:

Ra-- 0.03µm ~ 6.35µm (1µ inch~250µ inch) - Rz-- 0.2µm ~ 25.3µm (8µ inch~999µ inch)
Display resolution:0.01µm / 1µ inch
Cut-off:0.25mm / 0.001 inch - 2RC filter - select 1-3-5 times - 0.8mm / 0.03 inch - 2RC filter - select 1-3-5 times - 2.5mm / 0.01 inch - 2RC filter - select 2 times
Display:3-digit LCD
Accuracy:Meets ISO and DIN standards
Probe Type:Piezoelectric
Maximum stylus force:15.0mN / 1500mgf
Stylus tip radius:Diamond - 2 micron
Power:9V alkaline battery (not included)
Battery capacity:Approx. 3000 measurements
Output:RS-232 to pc or printer (only IPX-104)


Free UK Shipping on all Orders over £100 Inc. VAT

All orders over £100 Including VAT are delivered free within the UK, excluding Highlands & Islands and Northern Ireland. When you place an order with our website the cost of delivery will be automatically calculated in your shopping basket. UK Mainland orders below £100 Inc. VAT are £6.90 Inc. VAT.

Products "with Free Shipping"

Some products which cost less than £100 Inc. VAT have free shipping, the same exclusions on destinations apply as above. If "with Free Shipping" products are in the same basket as products without Free Shipping, then the additional products do not receive Free Shipping, and the order is treated as above.

General Information

All deliveries must be signed for, and will therefore not be left unattended. Deliveries are usually made during normal working hours. If you need to make any special arrangements with us for your delivery please contact us with your order number immediately after placing your order. Deliveries must be checked immediately upon receipt. If any damage is evident, please either sign for the delivery as 'damaged', marking the Carrier's receipt accordingly, or do not accept the delivery. Any damage or missing items must be reported within 24 hours of receipt to the returns department, including photos of the damaged goods where appropriate.

Oversize & Heavy Products

Some heavier, bulkier, or hazardous items may also incur a shipping surcharge, we will inform you of the surcharge before we take payment for your order.

Sameday Despatch

In stock orders that are placed before 3:00pm Monday to Friday are despatched that day for the following working day. Requesting delivery to an address different to the billling address may delay your order from being despatched the same day.

EU & Rest of World

To calculate the cost of shipping an order to you, please put your items in the shopping basket, and then request a shipping quote. The price quoted will be for a single carton of up to 30Kg. If the weight/volume of your order exceeds this, we will contact you before shipping to confirm costs.


If your country is within the EU and you are VAT registered, please enter your VAT number to get VAT removed. The number provided will be validated against VIES, if the number is invalid VAT will still be collected.