Air-Knocker (Seishin Brand)

We are the only official distributor in Thailand.
We stock products in Thailand.

Air knocker is a unique equipment to remove powders clogged to an object such as hopper, tank and chute for storage, carriage, drying, pulverizing and dust collection.

Air knocker operates only by compressed air and therefore is highly safe. When compressed air is supplied to an air knocker, an inside piston strikes its base plate. The impact power is transmitted to a hopper through the base plate, and clogging or bridge of powders in the hopper is resolved. Then the powder materials are removed and product flow is maintained without blockage or interruption.

Our air knocker’s main body is made of aluminum alloy casting and has a simple
structure. Therefore, it is lighter than other similar products made of steel. Set up
and replacement of spare parts are very easy, too.

Download Catalog

Air knocker Standard Type (SK series)

Magnet type air knocker boasts many years of experience

Model	SK-30	SK-40	SK-60	SK-80	SK-100
Operating pressure	0.35 to 0.6 MPa	0.35 to 0.6 MPa	0.35 to 0.6 MPa	0.35 to 0.6 MPa	0.35 to 0.6 MPa
Air consumption power	0.028ℓ/time	0.082ℓ/time	0.228ℓ/time	0.455ℓ/time	1.012ℓ/time
Impact force	1.0 to 1.5 Ns	3.3 to 5.1 Ns	7.1 to 10.8 Ns	19.3 to 29.5 Ns	44.5 to 67.9 Ns
Body weight	0.7kg	1.8kg	4.6kg	7.9kg	23.5kg
Total weight	1.0kg	2.9kg	7.8kg	11.8kg	35.2kg
Body material	Aluminum Casting	Aluminum Casting	Aluminum Casting	Aluminum Casting	Casting iron

Part drawing of Air knocker SK type and part names

Recommended parts for maintenance

4 O-Ring for Head Flange
5 O-Ring for Anchor plate
9 Piston Ring
10 O-Ring for Piston
11 Return Sprin

Air knocker Variable Type (SV series)

Valve type knocker which can change the impact force greatly by adjusting the air pressure

Model	SV-30	SV-40	SV-60	SV-80
Operating pressure	0.2 to 0.6 MPa	0.2 to 0.6 MPa	0.2 to 0.6 MPa	0.2 to 0.6 MPa
Air consumption power	0.023ℓ/time	0.06ℓ/time	0.129ℓ/time	0.277ℓ/time
Impact force	0.7 to 1.2 Ns	2.4 to 4.1 Ns	6.2 to 10.7 Ns	16.2 to 27.9 Ns
Body weight	0.7kg	1.8kg	4.4kg	7.6kg
Total weight	1.0kg	2.9kg	7.6kg	11.5kg
Body material	Aluminum Casting	Aluminum Casting	Aluminum Casting	Aluminum Casting

Air knocker Plastic Type (SKL series)

Engineering Plastic Knocker is the material of the main body casing has been changed to engineering plastic, making it resistant to salt damage, oxidation, and corrosion, and also lighter in weight.

Model	SKL-15	SKL-30	SKL-40	SKL-60	SKL-80
Operating pressure	0.2 to 0.6 MPa	0.35 to 0.6 MPa	0.35 to 0.6 MPa	0.35 to 0.6 MPa	0.35 to 0.6 MPa
Air consumption power	0.004ℓ/time	0.028ℓ/time	0.082ℓ/time	0.228ℓ/time	0.455ℓ/time
Impact force	0.1 to 0.2 Ns	1.0 to 1.5 Ns	3.3 to 5.1 Ns	7.1 to 10.8 Ns	19.3 to 29.5 Ns
Body weight	0.07kg	0.4kg	1.2kg	3.2kg	5.6kg
Total weight	0.08kg	0.7kg	2.3kg	7.3kg	9.5kg
Body material	Plastic	Plastic	Plastic	Plastic	Plastic

Air knocker Long piston Type (SK-LP series)

It is suitable for hitting a place which can not be welded, rotating body Or a tank with insulation

Model	SK-30LP	SK-40LP	SK-60LP	SK-80LP	SK-100LP
Operating pressure	0.35 to 0.6 MPa	0.35 to 0.6 MPa	0.35 to 0.6 MPa	0.35 to 0.6 MPa	0.35 to 0.6 MPa
Air consumption power	0.028ℓ/time	0.082ℓ/time	0.228ℓ/time	0.455ℓ/time	1.012ℓ/time
Impact force	1.4 to 2.2 Ns	3.8 to 5.8 Ns	9.6 to 14.7 Ns	23.5 to 35.8 Ns	51.0 to 77.9 Ns
Body weight	0.8kg	2.1kg	5.4kg	9.5kg	26.3kg
Total weight	1.7kg	4.8kg	11.7kg	15.7kg	36.3kg
Body material	Aluminum Casting	Aluminum Casting	Aluminum Casting	Aluminum Casting	Casting iron

Air knocker Stainless Type (SUS series)

SUS type can also be used for food and pharmaceutical plants.

Model	>SK-30SUS	SK-40SUS	SK-60SUS
Operating pressure	0.35 to 0.6 MPa	0.35 to 0.6 MPa	0.35 to 0.6 MPa
Air consumption power	0.028ℓ/time	0.082ℓ/time	0.228ℓ/time
Impact force	1.0 to 1.5 Ns	3.3 to 5.1 Ns	7.1 to 10.8 Ns
Body weight	1.5kg	3.8kg	9.7kg
Total weight	2.1kg	5.7kg	14.0kg
Body material	Stainless steel	Stainless steel	Stainless steel