45mm Round Self-Inking Stamp
The 45mm round self-inking stamp (R-45) for complex logos, multi-line text and official-style company seals — factory direct OEM supply with custom colors and private label packaging.
Quick Facts
The 45mm round self-inking stamp (R-45) is a large-format business stamp with a 45mm round imprint, designed for complex logos, multi-line text and official-style company seals. It supports OEM logo plates, custom housing colors, private label packaging and a replaceable ink pad.
When Should Buyers Choose a 45mm Round Stamp?
Buyers should choose the 45mm round self-inking stamp when the design needs more room than 40mm or 42mm can offer: multi-line company names, detailed logos, or official-style seals with several rings of text.
Compared with the 50mm model, the 45mm stamp keeps a more compact housing while still providing a large, readable impression, which makes it a balanced choice for corporate and institutional buyers.
Product Overview
The 45mm round self-inking stamp (R-45) is the step-up choice when a standard company seal is not big enough. The larger round imprint handles complex logos, three or more lines of circular text and official-style layouts that need a strong, clearly readable mark on documents and packaging.
Importers and office supply brands order the R-45 for corporate clients, institutions and retail branding programs. Hongli manufactures it in-house with the same R-Series mechanism, and supports OEM logo plates, custom housing colors and private label packaging for bulk orders.
Technical Specifications
Technical Specifications — 45mm Round Self-Inking Stamp
| Product Name | 45mm Round Self-Inking Stamp (R-45) |
|---|---|
| Shape | Round |
| Impression Size | Round, Ø45 mm imprint |
| Plate / Die | Round 45mm die, engraved from your artwork (larger imprint for complex logos and more text) |
| Body Material | Durable ABS plastic case (multiple colors available) |
| Ink Pad | Replaceable, water-based quick-dry ink |
| Ink Colors | Black, Blue, Red, Green, Violet |
| Impression Life | Up to 5,000+ clear impressions before re-inking |
| Logo | Custom logo available |
| Shell Color | Custom color available for bulk orders |
| MOQ | 100 pcs with your custom logo / plate text |
| Sample | Logo proof in 3 days after artwork confirmation; physical sample in 3 days |
| Bulk Lead Time | 15–25 days depending on quantity |
| Packaging | Individual box + export carton; OEM / private label packaging available |
Key Features
Larger Round Imprint
The 45mm die area fits detailed logos and multi-line circular text without crowding the layout.
Sharp Detail Reproduction
Laser-engraved rubber keeps fine lines, small fonts and intricate logo elements crisp at the larger size.
Durable ABS Housing
A rigid ABS body keeps the larger die aligned, so impressions stay even across the full 45mm surface.
Smooth Self-Inking Action
The die re-inks itself against the internal pad after every impression — no separate stamp pad needed.
Replaceable Ink Pad
Slide-out pads in five ink colors extend the service life of every unit.
OEM and Bulk Ready
Custom logo plates, shell colors and branded packaging built for repeat wholesale supply.
Common Applications
Brand Stamps
Large round logo stamps for packaging, shopping bags, boxes and promotional materials.
Corporate & Institutional Seals
Official-style circular stamps with department names, registration numbers or bilingual text rings.
Multi-Line Business Stamps
Company stamps that combine logo, name, address or website in one clear impression.
Custom Logo and Shell Colors
Send your artwork as a vector file and our designers will compose the 45mm layout — central logo, text rings and spacing — then send a proof within 3 days. Complex logos especially benefit from the larger die area.
Standard housing colors are stocked; custom shell colors are available for bulk orders. Color options are summarized on the custom stamp colors page.
Replaceable Ink Pad
The R-45 pad slides out for quick replacement. Pads are supplied in black, blue, red, green, violet and can be added to any bulk order as spare parts. See replacement ink pads for details.
OEM Packaging and Private Label
We supply the R-45 in plain export packaging or fully branded retail boxes. Our custom stamp packaging service covers printed color boxes, header cards, inserts and barcodes, and private label programs put your brand on both the stamp and the box.
MOQ & Samples
A physical sample is produced from your approved artwork so the impression quality and packaging can be checked before mass production. The R-45 can be combined with other R-Series sizes in one shipment.
Manufacturing & Quality Control
Larger dies demand tighter assembly tolerances. Each R-45 batch is impression-tested across the full 45mm surface to confirm even inking from edge to edge. More about our production and inspection steps is on the self-inking stamp manufacturer page.
Learn more about our production on the Self-Inking Stamp Manufacturer page, or contact our team for factory details.
Compare Other Round Stamp Sizes
All four round sizes share the same self-inking mechanism, ABS housing and OEM options. Use the table below to compare and switch between models.
| Imprint Size | Product Page | Recommended Use |
|---|---|---|
| 40mm | View 40mm | General office and standard company stamps |
| 42mm | View 42mm | Company and business stamps with longer names |
| 45mm | 45mm — Current Model | Larger logos and official-style stamps |
| 50mm | View 50mm | Large logos and maximum round impressions |
For a full selection walkthrough, read the 40mm vs 42mm vs 45mm vs 50mm Round Self-Inking Stamp Size Guide.
Related Products
R-40 · 40mm
Best seller for company logos with circular text.
R-42 · 42mm
Extra room for longer company names and detailed logos.
R-50 · 50mm
Largest standard round model in the R-Series.
Replacement Ink Pads
Replaceable ink pads for all R-Series round self-inking stamps.
Need Your Own Brand?
We support custom logo plates, custom housing colors, private label packaging and bulk repeat production for importers, wholesalers and office supply brands.
Quick Factory Quote
Send model, size, quantity, logo requirement and destination country. We will reply within 8 hours.
45mm Round Self-Inking Stamp FAQ
Common questions about the 45mm round self-inking stamp, larger logos, OEM packaging and samples.
1. Is 45mm suitable for larger logos?
Yes. The 45mm imprint gives complex logos and detailed artwork enough room to reproduce cleanly. It also fits three or more lines of circular text, which is tight on smaller sizes.
2. What is the difference between 42mm and 45mm?
The 45mm imprint is 3mm larger in diameter. Choose 42mm for standard company seals with longer names; choose 45mm when the logo is detailed or the layout needs multiple text rings.
3. Can the shell color be customized?
Yes. Standard housing colors are available from stock, and custom shell colors can be matched for bulk orders. Ink pads come in black, blue, red, green and violet.
4. Do you provide OEM packaging?
Yes. We produce printed color boxes, header cards, inserts and barcode labels under your brand, as well as full private label programs.
5. Is the ink pad replaceable?
Yes. The slide-in pad can be replaced in seconds, and replacement pads are available for repeat bulk supply.
6. Can I request samples?
Yes. The logo proof is ready in 3 days after artwork confirmation and a physical sample takes 3 days. Bulk production follows in 15–25 days depending on quantity.