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Sealey SA77 Air Sander 150mm Random Orbital

Product Number: SA77

£63.88 £62.63

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Surface preparation by hand is slow, tiring, and rarely delivers a consistent finish. The Sealey SA77 random orbital air sander tackles that problem with a lightweight, balanced aluminium body and a double bearing counter balance assembly that reduces fatigue during extended use. A spindle lock device makes pad removal quick and straightforward. The housing is fitted with a composite cap and internal baffle for quiet operation, keeping noise pressure down to 87dB(A). An airflow control valve lets you adjust performance to suit the task. Running at up to 10,000rpm free speed on a 4.2mm orbit, the SA77 connects via a 1/4" BSP inlet and operates at 90psi with an air consumption of just 4cfm. Supplied complete with a 150mm hook-and-loop backing pad ready to fit abrasive discs. Thread size is 5/16" UNF.

Key Features:

Sealey SA77 Air Sander 150mm Random Orbital is presented as a model-specific workshop product, combining the supplied title, description and specifications for accurate catalogue use.
Key technical details include noise power/pressure 98/87dB(A), size 1/4"BSP, giving buyers clear specification data for accurate selection and comparison.
Safety-focused design includes a positive locking design to support safer controlled use, helping users maintain control during setup, operation and handling.
It is suited to fabrication, welding repair and metalworking jobs requiring controlled, repeatable workshop performance, matching the product title and supplied description.
A key selling point is its air consumption 4cfm specification, giving this model a clear product-specific advantage for buyers comparing similar workshop options.
Operational details include free speed 10000rpm, air consumption 4cfm, supporting product setup, handling and internal catalogue accuracy for everyday workshop use.

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PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specializing in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalog of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.

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Model No	SA77
Air Consumption	4cfm
Brand	Sealey
Free Speed	10000rpm
Inlet Size	1/4"BSP
Nett Weight	1.55kg
Noise Power/Pressure	98/87dB(A)
No-Load Speed	N/A
Operating Pressure	90psi
Orbit Size	Ø4.2mm
Pad Size	Ø150mm
Thread Size	5/16"UNF
Vacuum Outlet	n/a
Vibration/Uncertainty	2.0/1.5m/s²

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Engine Parts	Product Number	Product Name	Recommended Units	Product Price

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Standard Delivery: UK Mainland Free
Next Day Delivery Available
Delivery Estimate: 2 to 4 working days
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Compare with Similar products	Compare Sealey GSA003 Air Palm Orbital Sander 75mm £63.87 £62.62 2% OFF Free delivery in UK Mainland ADD	Compare Sealey GSA70 Air Orbital Sander Disc 50mm 15000rpm £59.19 £58.03 2% OFF Free delivery in UK Mainland ADD	Compare Sealey S01044 Random Orbital Air Sander 150mm £50.93 £49.93 2% OFF Free delivery in UK Mainland ADD	Compare Sealey GSA04 Air Palm Random Orbital Sander 150mm 3cfm £70.98 £69.59 2% OFF Free delivery in UK Mainland ADD	Compare Chicago Pneumatic CP7215, 6"(150mm) Random Orbital Air Sander £150.56 £146.17 3% OFF Free delivery in UK Mainland ADD	Compare Chicago Pneumatic CP7215E, 6"(150mm) Random Orbital Air Sander £148.80 £144.47 3% OFF Free delivery in UK Mainland ADD	Compare Chicago Pneumatic CP7255CV, 6"(150mm) Random Orbital Air Sander £157.00 £152.43 3% OFF Free delivery in UK Mainland ADD	Compare Chicago Pneumatic CP7215SVE, 6"(150mm) Random Orbital Air Sander £169.30 £164.37 3% OFF Free delivery in UK Mainland ADD
Technical Specification
PRODUCT NUMBER	GSA003	GSA70	S01044	GSA04	8941072151	8941272151	8941072553	8941272152
Free Speed(RPM)	11000	15000	10000	10500	12000	12000	12000	12000
Air Consumption(CFM)	3.5	4	4	3
Pad Diameter(mm)	75	50	150	150	150	150	150	150
Orbit Size(mm)	2.5	3	5	2.5	10	10	5	10

Technical

Q 1. What size backing pad does the SA77 use?

A. The SA77 is supplied with a Ø150mm hook-and-loop backing pad. The pad thread size is 5/16" UNF.

Q 2. What air pressure and consumption does the SA77 require?

A. The SA77 operates at 90psi with an air consumption of 4cfm and connects via a 1/4" BSP inlet.

Q 3. What is the free speed and orbit size of the SA77?

A. Free speed is 10,000rpm and the orbit size is Ø4.2mm.

Q 4. How noisy is the SA77 air sander?

A. Noise power is rated at 98dB(A) and noise pressure at 87dB(A). The housing features a composite cap and internal baffle specifically designed for quieter operation.

Q 5. What is the vibration level of the SA77?

A. Vibration is rated at 2.0m/s² with an uncertainty value of 1.5m/s².

Q 6. How do I remove the backing pad on the SA77?

A. The SA77 is fitted with a spindle lock device to make pad removal easy and safe.

Q 7. Can I control the airflow on the SA77?

A. Yes, the SA77 is equipped with an airflow control valve to adjust air supply during use.

Q 8. What is the SA77 body made from?

A. The body is constructed from lightweight, balanced aluminium with a composite cap on the housing.

Q 9. What payment methods do you accept?

A. We accept all major credit and debit cards, along with PayPal.