42mm Round Self-Inking Stamp
The 42mm round self-inking stamp (R-42) gives extra room for longer company names and detailed logos — factory direct OEM supply with custom logo, colors and private label packaging.
Quick Facts
The 42mm round self-inking stamp (R-42) is a mid-size business stamp with a 42mm round imprint — slightly larger than the 40mm model, giving extra room for longer company names and more detailed logos. It supports OEM logo plates, custom housing colors, private label packaging and a replaceable ink pad.
Who Is the 42mm Size Best For?
The 42mm round self-inking stamp is best for buyers who need more impression space than a 40mm model: company seals with longer business names, circular logos with extra text, and general commercial stamping where small wording must stay readable.
Because the R-42 shares the same housing size and mechanism as the R-40, it is a practical upgrade for distributors and brands that want one product line covering both standard and slightly larger company seals.
Product Overview
The 42mm round self-inking stamp (R-42) sits between the standard 40mm and the larger 45mm models. Those extra 2mm of diameter give noticeably more room for longer company names, website addresses or more detailed logo artwork that would feel tight on a 40mm imprint.
Many corporate buyers choose the 42mm round stamp when the standard company seal layout needs an additional text ring — for example a registration number or a tagline around the company name. Hongli manufactures the R-42 in-house and supplies it to wholesalers and office supply brands with custom logo plates, housing colors and private label packaging.
Technical Specifications
Technical Specifications — 42mm Round Self-Inking Stamp
| Product Name | 42mm Round Self-Inking Stamp (R-42) |
|---|---|
| Shape | Round |
| Impression Size | Round, Ø42 mm imprint |
| Plate / Die | Round 42mm die, engraved from your artwork (extra space for longer company names and detailed logos) |
| 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 |
Why Buyers Choose 42mm
More Room Than 40mm
The 42mm imprint fits longer circular text — full company names, registration numbers or web addresses — without shrinking the font.
Cleaner Detailed Logos
Fine lines and small elements stay legible because the die has more surface area to work with at 42mm.
Same Compact Housing
The R-42 keeps a hand-friendly housing size, so daily stamping stays comfortable in busy offices.
Same Reliable Mechanism
It shares the proven R-Series self-inking mechanism and replaceable pad system with the rest of the lineup.
Full OEM Support
Logo plate, housing color, ink color and retail packaging are all customizable for your brand.
Easy Line Extension
Distributors can add the 42mm next to 40mm and 45mm to cover the most requested company seal sizes.
Common Applications
Company & Business Stamps
Round company seals with longer legal names or an extra text ring around the central logo.
Official-Style Circular Stamps
Institutions and organizations that need circular approval or certification stamps with more text.
Brand & Packaging Stamps
Logo stamps for boxes, paper bags and cards where the artwork benefits from a slightly larger imprint.
Custom Logo Plate
The R-42 die is engraved from your artwork. Send a vector file (AI, PDF or CDR) and our design team will lay out the circular text and logo for the 42mm format, then send a digital proof within 3 days. Adjustments for spacing and font size are handled free of charge before engraving.
If you already buy our 40mm stamps, the same artwork can usually be re-used — we simply re-balance the layout for the larger imprint.
Housing Colors and Ink Pads
Standard housing colors are available from stock, and custom shell colors can be matched for bulk orders. The slide-in ink pad is replaceable and ships in black, blue, red, green, violet. Spare pads are listed on the replacement ink pads page.
OEM Packaging and Private Label
For importers and brand owners we supply the R-42 under your own brand: printed color boxes, header cards, inserts and barcode labels through our custom packaging service, or a complete private label program covering product and box.
MOQ & Samples
Samples are made from your final artwork so the impression, housing and packaging can be approved before mass production. The 42mm can be mixed with other R-Series sizes in a single order.
Manufacturing & Quality Control
The R-42 goes through the same in-house process as the rest of the R-Series: ABS injection molding, laser die engraving, pad filling, assembly and batch impression testing. Details are 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 | 42mm — Current Model | Company and business stamps with longer names |
| 45mm | View 45mm | 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-45 · 45mm
Larger imprint for complex logos and more text.
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.
42mm Round Self-Inking Stamp FAQ
Common questions about the 42mm round self-inking stamp, logo plates, samples and wholesale orders.
1. What is the difference between 40mm and 42mm?
The 42mm imprint is 2mm larger in diameter, which gives more room for longer circular text or more detailed logo artwork. The housing, mechanism and ink pad system are the same R-Series design. If your company name is long or you need an extra text ring, 42mm is usually the better fit.
2. Is 42mm suitable for company logos?
Yes. The round 42mm format is designed for company seals that combine a central logo with circular text. The extra space keeps small details and longer names legible.
3. Can you customize the logo plate?
Yes. The die is engraved from your artwork. Send a vector file or a clear image and we will prepare a digital proof within 3 days, including layout adjustments for the round format.
4. Can I choose the body color?
Yes. Standard housing colors ship from stock, and custom shell colors can be produced for bulk orders. Ink pads come in black, blue, red, green and violet.
5. Can I order samples?
Yes. After artwork confirmation the logo proof is ready in 3 days and a physical sample takes 3 days, so you can check the impression before bulk production.
6. Do you support bulk wholesale orders?
Yes. The standard MOQ is 100 pcs per design, with bulk production in 15–25 days depending on quantity. The 42mm can be mixed with other sizes in one order.